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The long and triumphant reign of its first emperor, Augustus, began a golden age of peace and prosperity;

As legend has it, Rome was founded in 753 B.C. by Romulus and Remus,

twin sons

Romulus became the first king of Rome,

Rome’s era as a monarchy ended in 509 B.C.

The power of the monarch passed to two annually elected magistrates called consuls. They also served as commanders in chief of the army.

Politics in the early republic was marked by the long struggle between patricians and plebeians (the common people), who eventually attained some political power through years of concessions from patricians

In 450 B.C., the first Roman law code was inscribed on 12 bronze tablets–known as the Twelve Tables–and publicly displayed in the Roman Forum.

By around 300 B.C., real political power in Rome was centered in the Senate, which at the time included only members of patrician and wealthy plebeian families.

During the early republic, the Roman state grew exponentially in both size and power

Rome then fought a series of wars known as the Punic Wars with Carthage, a powerful city-state in northern Africa. The first two Punic Wars ended with Rome in full control of Sicily, the western Mediterranean and much of Spain. In the Third Punic War (149–146 B.C.), the Romans captured and destroyed the city of Carthage and sold its surviving inhabitants into slavery, making a section of northern Africa a Roman province.

Rome’s military conquests led directly to its cultural growth as a society, as the Romans benefited greatly from contact with such advanced cultures as the Greeks.

The first Roman literature appeared around 240 B.C., with translations of Greek classics into Latin; Romans would eventually adopt much of Greek art, philosophy and religion.

Rome’s complex political institutions began to crumble under the weight of the growing empire, ushering in an era of internal turmoil and violence.

The gap between rich and poor widened as wealthy landowners drove small farmers from public land,

When the victorious Pompey returned to Rome, he formed an uneasy alliance known as the First Triumvirate

After earning military glory in Spain, Caesar returned to Rome to vie for the consulship in 59 B.C.

Caesar received the governorship of three wealthy provinces in Gaul beginning in 58 B.C.

In 49 B.C., Caesar and one of his legions crossed the Rubicon, a river on the border between Italy from Cisalpine Gaul

Consul Mark Antony and Caesar’s great-nephew and adopted heir, Octavian, joined forces to crush Brutus and Cassius and divided power in Rome with ex-consul Lepidus in what was known as the Second Triumvirate. With Octavian leading the western provinces, Antony the east, and Lepidus Africa, tensions developed by 36 B.C. and the triumvirate soon dissolved. In 31 B.C., Octavian triumped over the forces of Antony and Queen Cleopatra of Egypt (also rumored to be the onetime lover of Julius Caesar) in the Battle of Actium

To avoid meeting Caesar’s fate, he made sure to make his position as absolute ruler acceptable to the public by apparently restoring the political institutions of the Roman republic while in reality retaining all real power for himself. In 27 B.C., Octavian assumed the title of Augustus, becoming the first emperor of Rome.

By 29 B.C., Octavian was the sole leader of Rome and all its provinces.

Augustus’ rule restored morale in Rome after a century of discord and corruption and ushered in the famous pax Romana–two full centuries of peace and prosperity.

He instituted various social reforms, won numerous military victories and allowed Roman literature, art, architecture and religion to flourish.

When he died, the Senate elevated Augustus to the status of a god, beginning a long-running tradition of deification for popular emperors.

The decadence and incompetence of Commodus (180-192) brought the golden age of the Roman emperors to a disappointing end. His death at the hands of his own ministers sparked another period of civil war, from which Lucius Septimius Severus (193-211) emerged victorious.

Meanwhile, threats from outside plagued the empire and depleted its riches, including continuing aggression from Germans and Parthians and raids by the Goths over the Aegean Sea.

Diocletian divided power into the so-called tetrarchy (rule of four), sharing his title of Augustus (emperor) with Maximian. A pair of generals, Galerius and Constantius, were appointed as the assistants and chosen successors of Diocletian and Maximian; Diocletian and Galerius ruled the eastern Roman Empire, while Maximian and Constantius took power in the west.

The stability of this system suffered greatly after Diocletian and Maximian retired from office. Constantine (the son of Constantius) emerged from the ensuing power struggles as sole emperor of a reunified Rome in 324. He moved the Roman capital to the Greek city of Byzantium, which he renamed Constantinople. At the Council of Nicaea in 325, Constantine made Christianity (once an obscure Jewish sect) Rome’s official religion.

An entirely different story played out in the west, where the empire was wracked by internal conflict as well as threats from abroad–particularly from the Germanic tribes now established within the empire’s frontiers like the Vandals (their sack of Rome originated the phrase “vandalism”)–and was steadily losing money due to constant warfare.

Rome eventually collapsed under the weight of its own bloated empire, losing its provinces one by one:

In September 476, a Germanic prince named Odovacar won control of the Roman army in Italy.

After deposing the last western emperor, Romulus Augustus, Odovacar’s troops proclaimed him king of Italy, bringing an ignoble end to the long, tumultuous history of ancient Rome. The fall of the Roman Empire was complete.

Roman aqueducts, first developed in 312 B.C., enabled the rise of cities by transporting water to urban areas, improving public health and sanitation.

Roman cement and concrete are part of the reason ancient buildings like the Colosseum and Roman Forum are still standing strong today.

Roman arches, or segmented arches, improved upon earlier arches to build strong bridges and buildings, evenly distributing weight throughout the structure.

Roman roads, the most advanced roads in the ancient world, enabled the Roman Empire

to stay connected

Gaius Octavian Thurinus, Julius Caesar's nephew and heir, became the first emperor of Rome and took the name Augustus Caesar. Although Julius Caesar is often regarded as the first emperor of Rome, this is incorrect; he never held the title `Emperor' but, rather, `Dictator', a title the Senate could not help but grant him, as Caesar held supreme military and political power at the time. In contrast, the Senate willingly granted Augustus the title of emperor, lavishing praise and power on him because he had destroyed Rome's enemies and brought much-needed stability.

Augustus ruled the empire from 31 BCE until 14 CE when he died. In that time, as he said himself, he "found Rome a city of clay but left it a city of marble." Augustus reformed the laws of the city and, by extension, the empire’s, secured Rome's borders, initiated vast building projects

The Pax Romana (Roman Peace), also known as the Pax Augusta, which he initiated, was a time of peace and prosperity hitherto unknown and would last ove

Domitian's successor was his advisor Nerva who founded the Nervan-Antonin Dynasty which ruled Rome 96-192 CE.  This period is marked by increased prosperity owing to the rulers known as The Five Good Emperors of Rome. Between 96 and 180 CE, five exceptional men ruled in sequence and brought the Roman Empire to its height

In 312 CE Constantine defeated Maxentius at the Battle of the Milvian Bridge and became sole emperor of both the Western and Eastern Empires

Under their leadership, the Roman Empire grew stronger, more stable, and expanded in size and scope

This period, also known as The Imperial Crisis, was characterized by constant civil war, as various military leaders fought for control of the empire. The crisis has been further noted by historians for widespread social unrest, economic instability (fostered, in part, by the devaluation of Roman currency by the Severans), and, finally, the dissolution of the empire which broke into three separate regions.

Even so, the empire was still so vast that Diocletian divided it in half in c.285 CE to facilitate more efficient administration by elevating one of his officers, Maximian (r. 286-305 CE) to the position of co-emperor. In so doing, he created the Western Roman Empire and the Eastern Roman Empire (also known as the Byzantine Empire).

Nerva (r. 96-98 CE) Trajan (r. 98-117 CE) Hadrian (r. 117-138 CE) Antoninus Pius (r. 138-161 CE) Marcus Aurelius (r. 161-180 CE)

Believing that Jesus Christ was responsible for his victory, Constantine initiated a series of laws such as the Edict of Milan (313 CE) which mandated religious tolerance throughout the empire and, specifically, tolerance for the faith which came to known as Christianity.

Constantine chose the figure of Jesus Christ. At the First Council of Nicea (325 CE), he presided over the gathering to codify the faith and decide on important issues such as the divinity of Jesus and which manuscripts would be collected to form the book known today as The Bible. He stabilized the empire, revalued the currency, and reformed the military, as well as founding the city he called New Rome on the site of the former city of Byzantium (modern-day Istanbul) which came to be known as Constantinople.

He is known as Constantine the Great owing to later Christian writers who saw him as a mighty champion of their faith

His three sons, Constantine II, Constantius II, and Constans divided the Roman Empire between them but soon fell to fighting over which of them deserved more

From 376-382 CE, Rome fought a series of battles against invading Goths known today as the Gothic Wars. At the Battle of Adrianople, 9 August 378 CE, the Roman Emperor Valens (r. 364-378 CE) was defeated, and historians mark this event as pivotal in the decline of the Western Roman Empire.

The ungovernable vastness of the empire, even divided in two, made it difficult to manage. The Eastern Empire flourished while the Western Empire struggled and neither gave much thought to helping the other. Eastern and Western Rome saw each other more as competitors than teammates and worked primarily in their own self-interest.

The Roman military, manned largely with barbarian mercenaries who had no ethnic ties to Rome, could no longer safeguard the borders as efficiently as they once had nor could the government as easily collect taxes in the provinces.

The Western Roman Empire officially ended 4 September 476 CE, when Emperor Romulus Augustulus was deposed by the Germanic King Odoacer (though some historians date the end as 480 CE with the death of Julius Nepos). The Eastern Roman Empire continued on as the Byzantine Empire until 1453 CE, and though known early on as simply `the Roman Empire’, it did not much resemble that entity at all.

The inventions and innovations which were generated by the Roman Empire profoundly altered the lives of the ancient people and continue to be used in cultures around the world today. Advancements in the construction of roads and buildings, indoor plumbing, aqueducts, and even fast-drying cement were either invented or improved upon by the Romans. The calendar used in the West derives from the one created by Julius Caesar, and the names of the days of the week (in the romance languages) and months of the year also come from Rome.

Apartment complexes (known as `insula), public toilets, locks and keys, newspapers, even socks all were developed by the Romans as were shoes, a postal system (modeled after the Persians), cosmetics, the magnifying glass, and the concept of satire in literature. During the time of the empire, significant developments were also advanced in the fields of medicine, law, religion, government, and warfare. The Romans were adept at borrowing from, and improving upon, those inventions or concepts they found among the indigenous populace of the regions they conquered

The Eastern Empire flourished while the Western Empire struggled and finally fell c. 476 CE.

it became the foundation of the Holy Roman Empire (962-1806 CE) - seen as a revival of the values and order of the Roman Empire at its height - first under the reign of Charlemagne

The Holy Roman Empire steadily lost cohesion and authority as an outmoded institution incapable of governing in a modern age, becoming increasingly corrupt and ineffectual, until it was finally dissolved in 1806 CE.

The Roman Empire was founded by the first emperor Augustus (r. 27 BCE-14 CE) and steadily grew in power through the reigns of the Five Good Emperors

After Commodus was assassinated, Rome experienced a year of confusion (known as The Year of the Five Emperors) during which five different men took power and were deposed until Septimius Severus (r. 193-211 CE) founded the Severan Dynasty and restored order.

In 235 CE, the emperor Alexander Severus (r. 222-235 CE) was assassinated by his own troops who felt he was not acting in their best interests. This plunged Rome into the era known as the Crisis of the Third Century (also the Imperial Crisis, 235-284 CE) during which 20 emperors would come and go in almost 50 years,

Charlemagne became the preeminent Christian champion of his time, extending his empire while at the same time launching crusades against the Muslim Saracens as he had previously done against the pagan Saxons (through the Saxon Wars of 772-804 CE).

When Diocletian came to power, he restored order and divided the empire’s rule between himself in the east and Maximian in the west.

Under the reign of Constantine the Great (324-337 CE), the empire as a whole flourished but it was never as cohesive as it had been under the Five Good Emperors. The Eastern Empire established lucrative trade and prospered while the Western Empire struggled and, since the two sections tended to view the other as competition, they worked as separate entities who shared a common bond but served their own interests.

At the Battle of Adrianople in 378 CE, the Eastern Emperor Valens (r. 364-378 CE) was defeated by Fritigern (d. c. 380 CE) of the Goths and many historians agree that this marks the beginning of the end of the Roman Empire.

This is not at all to claim that Theodosius I’s reign led to the end of the Western Roman Empire. There is no single cause for the decline and fall of Rome. A steady deterioration in power and prestige had been ongoing prior to the Roman defeat at Adrianople and all these challenges and pressures culminated in the deposition of the emperor Romulus Augustulus (r. 475-476 CE) by the Germanic king Odoacer on 4 September 476 CE, prior to Adrianople.

While c. 476 CE is the traditionally accepted date for the end of the Western Roman Empire, that entity did continue on under the rule of Odoacer

By this time, most Lombards had assimilated with the people of Italy and the neighboring Franks and Charlemagne’s victory simply accelerated this process. Christianity was now the dominant religion of Europe and, since it had been legitimized and spread under Roman rule, there were many Christians who refused to let the concept of the Roman Empire disappear.

Charlemagne of the Franks was proclaimed Western Roman Emperor in 800 CE by Pope Leo III and entrusted with protecting and perpetuating the Christian message.

After the division, Diocletian instituted his tetrarchy – rule of four – whereby the empire was further divided between four men who ruled their own distinct sections.

Charlemagne set the foundation for the new empire but, as with many powerful and effective rulers, his successors could not maintain his same level of efficiency and the realm fell apart. It was reunited by Otto I of Germany who had followed Charlemagne’s example of the path to power through crusades against non-Christians (in this case, the Magyars).

Otto I then continued the policies of maintaining a Christian nation following Charlemagne’s example throughout his reign and set the standard for those who would follow him. The Holy Roman Empire continued to see itself in this role as an entity championing Christian truth through warfare until, in a steady decline involving political intrigue, corruption, almost incessant war, and constant internal strife, it was dissolved in 1806 CE.

Unlike the fall of earlier empires such as the Assyrian and Persian, Rome did not succumb to either war or revolution. On the last day of the empire, a barbarian member of the Germanic tribe Siri and former commander in the Roman army entered the city unopposed. The one-time military and financial power of the Mediterranean was unable to resist.

They believe the fall of Rome simply came because the barbarians took advantage of difficulties already existing in Rome - problems that included a decaying city (both physically and morally), little to no tax revenue, overpopulation, poor leadership, and, most importantly, inadequate defense.

Whatever the cause, whether it was religion, external attack, or the internal decay of the city itself, the debate continues to the present day; however, one significant point must be established before a discussion of the roots of the fall can continue: the decline and fall were only in the west. The eastern half - that which would eventually be called the Byzantine Empire - would continue for several centuries, and, in many ways, it retained a unique Roman identity.

that the fall was due to the fabric of the Roman citizen.

There are some who believe

Although Gibbon points to the rise of Christianity as a fundamental cause, the actual fall or decline could be seen decades earlier. By the 3rd century CE, the city of Rome was no longer the center of the empire

This massive size presented a problem and called for a quick solution, and it came with the reign of Emperor Diocletian. The empire was divided into two with one capital remaining at Rome and another in the east at Nicomedia; the eastern capital would later be moved to Constantinople, old Byzantium, by Emperor Constantine. The Senate, long-serving in an advisory capacity to the emperor, would be mostly ignored; instead, the power centered on a strong military. Some emperors would never step foot in Rome. In time Constantinople, Nova Roma or New Rome, would become the economic and cultural center that had once been Rome. 

the empire remained vulnerable to attack,

presence of barbarians along the northern border

This vulnerability became more obvious as a significant number of Germanic tribes, the Goths, gathered along the northern border. They did not want to invade; they wanted to be part of the empire, not its conqueror. The empire’s great wealth was a draw to this diverse population. They sought a better life, and despite their numbers, they appeared to be no immediate threat, at first. However, as Rome failed to act to their requests, tensions grew. This anxiety on the part of the Goths was due to a new menace further to the east, the Huns.

Although the Goths were mostly Christian many who joined them were not. Their presence had caused a substantial crisis for the emperor; he couldn’t provide sufficient food and housing. This impatience, combined with the corruption and extortion by several Roman commanders, complicated matters. Valens prayed for help from the west. Unfortunately, in battle, the Romans were completely outmatched and ill-prepared, and the Battle of Adrianople proved this when two-thirds of the Roman army was killed. This death toll included the emperor himself. It would take Emperor Theodosius to bring peace.

The Goths remained on Roman land and would ally themselves with the Roman army.

 one man, a Goth and former Roman commander,

sack Rome

His name was Alaric,

and while he was a Goth, he had also been trained in the Roman army. He was intelligent, Christian, and very determined. He sought land in the Balkans for his people, land that they had been promised.

Alaric sat outside the city, and over time, as the food and water in the city became increasingly scarce, Rome began to weaken. The time was now. While he had never wanted war but only land and recognition for his people Alaric, with the supposed help of a Gothic slave who opened the gates from within, entered Rome in August of 410 CE. He would stay for three days and completely sack the city;

Some people at the time viewed the sacking of the city as a sign from their pagan gods. St. Augustine, who died in 430 CE, said in his City of God that the fall of Rome was not a result of the people’s abandonment of their pagan gods (gods they believed protected the city) but as a reminder to the city’s Christians why they needed to suffer.

Although Alaric would soon die afterwards, other barbarians - whether Christian or not - did not stop after the sack of the city. The old empire was ravaged, among others, by Burgundians, Angles, Saxons, Lombards, and Magyars. By 475 CE Spain, Britain, and parts of Gaul had been lost to various Germanic people and only Italy remained as the “empire” in the west. The Vandals would soon move from Spain and into northern Africa, eventually capturing the city of Carthage.

Most of the causes, initially, point to one place: the city of Rome itself.

The loss of revenue for the western half of the empire could not support an army - an army that was necessary for defending the already vulnerable borders. Continual warfare meant trade was disrupted; invading armies caused crops to be laid to waste, poor technology made for low food production, the city was overcrowded, unemployment was high, and lastly, there were always the epidemics. Added to these was an inept and untrustworthy government.

The presence of the barbarians in and around the empire added to a crisis not only externally but internally.  These factors helped bring an empire from “a state of health into non-existence.” 

Rome’s fall ended the ancient world and the Middle Ages were borne. These “Dark Ages” brought the end to much that was Roman. The West fell into turmoil. However, while much was lost, western civilization still owes a debt to the Romans. Although only a few today can speak Latin, it is part of our language and the foundation of the Romance languages of French, Italian, and Spanish.  Our legal system is based on Roman law. Many present day European cities were founded by Rome.  Our knowledge of Greece comes though Rome and many other lasting effects besides.  Rome had fallen but it had been for so so long one of the history's truly world cities.

The Ara Pacis is a prime example of the propaganda Augustus employed to promote the Pax Romana, and depicts images of Roman gods and the city of Rome personified amidst wealth and prosperity.

By law, Augustus held powers granted to him for life by the Senate, including supreme military command and those of tribune and censor. It took several years for Augustus to develop the framework within which a formally republican state could be led under his sole rule.

Augustus passed a series of laws between the years 30 and 2 BCE that transformed the constitution of the Roman Republic into the constitution of the Roman Empire. During this time, Augustus reformed the Roman system of taxation, developed networks of roads with an official courier system, established a standing army, established the Praetorian Guard, created official police and fire-fighting services for Rome, and rebuilt much of the city during his reign.

Augustus modified the Roman political system to make it more palatable to the senatorial classes, eschewing the open authoritarianism exhibited by Julius Caesar and Mark Anthony

By the end of the first settlement, Augustus was in an ideal political position. Although he no longer held dictatorial powers, he had created an identity of such influence that authority followed naturally.

Augustus’s challenge was to persuade Romans that the prosperity they could achieve in the absence of war was better for the Empire than the potential wealth and honor acquired from fighting. Augustus succeeded by means of skillful propaganda.

A seat on the consuls’s platform at the front of the Curia The right to speak first in a Senate meeting, or ius primae relationis The right to summon a meeting of the Senate, which was a useful tool for policy making Care of Rome’s grain supply, or cura annonae, which gave him sweeping patronage powers over the plebs

The Pax Romana (Latin for “Roman peace”) was a long period of relative peace and minimal expansion by military forces experienced by the Roman Empire in the 1st and 2nd centuries CE.

Its span was approximately 206 years (27 BCE to 180 CE).

The Pax Romana started after Augustus, then Octavian, met and defeated Mark Antony in the Battle of Actium

Beyond Rome’s frontiers, he secured the Empire with a buffer region of client states, and made peace with the troublesome Parthian Empire through diplomacy.

The Romans regarded peace not as an absence of war, but the rare situation that existed when all opponents had been beaten down and lost the ability to resist.

Augustus renounced his ten-year consulship, but in return, secured the following concessions for himself.

The Ara Pacis Augustae, or Altar of Augustan Peace, is one of the best examples of Augustan artistic propaganda and the prime symbol of the new Pax Romana.

Augustus died in 14 CE at the age of 75. He may have died from natural causes, although unconfirmed rumors swirled that his wife Livia poisoned him.

Constant wars and overspending had significantly lightened imperial coffers, and oppressive taxation and inflation had widened the gap between rich and poor

the Western Empire seated in the city of Milan, and the Eastern Empire in Byzantium, later known as Constantinople. The division made the empire more easily governable in the short term, but over time the two halves drifted apart.

Most importantly, the strength of the Eastern Empire served to divert Barbarian invasions to the West. Emperors like Constantine ensured that the city of Constantinople was fortified and well guarded, but Italy and the city of Rome—which only had symbolic value for many in the East—were left vulnerable.

With such a vast territory to govern, the empire faced an administrative and logistical nightmare. Even with their excellent road systems, the Romans were unable to communicate quickly or effectively enough to manage their holdings.

Rome struggled to marshal enough troops and resources to defend its frontiers from local rebellions and outside attacks, and by the second century the Emperor Hadrian was forced to build his famous wall in Britain just to keep the enemy at bay.

ineffective and inconsistent leadership only served to magnify the problem.

Civil war thrust the empire into chaos, and more than 20 men took the throne in the span of only 75 years, usually after the murder of their predecessor.

The political rot also extended to the Roman Senate, which failed to temper the excesses of the emperors due to its own widespread corruption and incompetence. As the situation worsened, civic pride waned and many Roman citizens lost trust in their leadership.

The Barbarian attacks on Rome partially stemmed from a mass migration caused by the Huns’ invasion of Europe in the late fourth century. When these Eurasian warriors rampaged through northern Europe, they drove many Germanic tribes to the borders of the Roman Empire.

In brutalizing the Goths, the Romans created a dangerous enemy within their own borders. When the oppression became too much to bear, the Goths rose up in revolt and eventually routed a Roman army and killed the Eastern Emperor Valens during the Battle of Adrianople in A.D. 378. T

410, when the Goth King Alaric moved west and sacked Rome.

The decline of Rome dovetailed with the spread of Christianity, and some have argued that the rise of a new faith helped contribute to the empire’s fall.

Christianity displaced the polytheistic Roman religion, which viewed the emperor as having a divine status, and also shifted focus away from the glory of the state and onto a sole deity.

For most of its history, Rome’s military was the envy of the ancient world.

Unable to recruit enough soldiers from the Roman citizenry, emperors like Diocletian and Constantine began hiring foreign mercenaries to prop up their armies. The ranks of the legions eventually swelled with Germanic Goths and other barbarians, so much so that Romans began using the Latin word “barbarus” in place of “soldier.” While these Germanic soldiers of fortune proved to be fierce warriors, they also had little or no loyalty to the empire, and their power-hungry officers often turned against their Roman employers

Then there’s Elagabulus, whose biography is a veritable catalog of extreme pranks. He taunted his guests by serving them platters of faux food made from wax or wood or marble, while he feasted on real delicacies. Sometimes he served his guests paintings of meals, or napkins embroidered with pictures of the food he was eating. (Imagine walking away from a dinner with an empty stomach but loaded down with paintings of a Roman feast: flamingo tongues, peacock brains, combs cut from the heads of living roosters, etc.) Even when he served actual food, he delighted in mixing the edible and inedible, seasoning peas with gold nuggets, rice with pearls, and beans with glowing chips of amber.

Under Roman law, a slave was not considered to be properly a human being. But the “masters” must have known on some level that their “property” was not really theirs, that subservience and subordination were acts put on under duress. In theory, absolute power is invulnerable; in practice, the emperor is always looking over his shoulder for the assassins in the shadows

In 313 C.E., Roman emperor Constantine the Great ended all persecution and declared toleration for Christianity. Later that century, Christianity became the official state religion of the Empire. This drastic change in policy spread this relatively new religion to every corner of the Empire.

But the Christian belief in one god — who was not the emperor — weakened the authority and credibility of the emperor.

In 330 C.E., he split the empire into two parts: the western half centered in Rome and the eastern half centered in Constantinople, a city he named after himself.

The western Empire spoke Latin and was Roman Catholic. The eastern Empire spoke Greek and worshipped under the Eastern Orthodox branch of the Christian church.

Over time, the east thrived, while the west declined.

a decrease in agricultural production led to higher food prices. The western half of the empire had a large trade deficit with the eastern half. The west purchased luxury goods from the east but had nothing to offer in exchange. To make up for the lack of money, the government began producing more coins with less silver content. This led to inflation

Finally, piracy and attacks from Germanic tribes disrupted the flow o

f trade, especially in the wes

There were political and military difficulties, as well

As money grew tight, the government hired the cheaper and less reliable Germanic soldiers to fight in Roman armies. By the end, these armies were defending Rome against their fellow Germanic tribesmen. Under these circumstances, the sack of Rome came as no surprise.

Germanic barbarian tribes swept through the Roman Empire. Groups such as the Visigoths, Vandals, Angles, Saxons, Franks, Ostrogoths, and Lombards took turns ravaging the Empire, eventually carving out areas in which to settle down. The Angles and Saxons populated the British Isles, and the Franks ended up in France.

In 476 C.E. Romulus, the last of the Roman emperors in the west, was overthrown by the Germanic leader Odoacer,

Located on the European side of the Bosporus (the strait linking the Black Sea to the Mediterranean), the site of Byzantium was ideally located to serve as a transit and trade point between Europe and Asia.

Justinian also reformed and codified Roman law, establishing a Byzantine legal code that would endure for centuries and help shape the modern concept of the state.

The eastern half of the Roman Empire proved less vulnerable to external attack, thanks in part to its geographic location.

As a result of these advantages, the Eastern Roman Empire, variously known as the Byzantine Empire or Byzantium, was able to survive for centuries after the fall of Rome.

Even after the Islamic empire absorbed Alexandria, Antioch and Jerusalem in the seventh century, the Byzantine emperor would remain the spiritual leader of most eastern Christians.

Justinian I, who took power in 527 and would rule until his death in 565, was the first great ruler of the Byzantine Empire

In the west, constant attacks from German invaders such as the Visigoths broke the struggling empire down piece by piece until Italy was the only territory left under Roman control. In 476, the barbarian Odoacer overthrew the last Roman emperor, Romulus Augustus, and Rome had fallen.

By the end of the century, Byzantium would lose Syria, the Holy Land, Egypt and North Africa (among other territories) to Islamic forces.

Known as Iconoclasm—literally “the smashing of images”—the movement waxed and waned under various rulers, but did not end definitively until 843, when a Church council under Emperor Michael III ruled in favor of the display of religious images.

Though it stretched over less territory, Byzantium had more control over trade, more wealth and more international prestige than under Justinian.

Monks administered many institutions (orphanages, schools, hospitals) in everyday life, and Byzantine missionaries won many converts to Christianity

The end of the 11th century saw the beginning of the Crusades, the series of holy wars waged by European Christians against Muslims in the Near East from 1095 to 1291.

During the rule of the Palaiologan emperors, beginning with Michael VIII in 1261, the economy of the once-mighty Byzantine state was crippled, and never regained its former stature.

The fall of Constantinople marked the end of a glorious era for the Byzantine Empire.

In the centuries leading up to the final Ottoman conquest in 1453, the culture of the Byzantine Empire–including literature, art, architecture, law and theology–flourished even as the empire itself faltered.

Long after its end, Byzantine culture and civilization continued to exercise an influence on countries that practiced its Eastern Orthodox religion, including Russia, Romania, Bulgaria, Serbia and Greece, among others.

Ms. Warren did highlight her status as the top-polling female contender at several points in the debate, ending her closing statement with a reference to the possibility of electing the first woman president.

Warren makes her electability pitch.

One of Ms. Warren’s biggest political obstacles is the perception among some voters that she would face daunting challenges in a general election — both thanks to her boldly progressive outlook, and to societal sexism that many Democrats believe damaged Mrs. Clinton in 2016. @charset "UTF-8"; /*********************** B A S E S T Y L E S ************************/ /************************************* T Y P E : C L A S S M I X I N S **************************************/ /* Headline */ /* Leadin */ /* Byline */ /* Dateline */ /* Alert */ /* Subhed */ /* Body */ /* Caption */ /* Leadin */ /* Credit */ /* Label */ /********** S I Z E S ***********/ /******************** T Y P O G R A P H Y *********************/ .g-headline, .interactive-heading, .g-subhed { font-family: "nyt-cheltenham", georgia, "times new roman", times, serif; } .g-alert, .g-alert.g-body, .g-alert_link, .g-byline, .g-caption, .g-caption_bold, .g-caption_heading, .g-chart, .g-credit, .g-credit_bullet, .g-dateline, .g-label, .g-label_white, .g-leadin, #interactive-leadin, .g-refer, .g-refer.g-body, .g-table-text { font-family: nyt-franklin, arial, helvetica, sans-serif; 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And she invoked her 2012 victory over then-Senator Scott P. Brown, Republican of Massachusetts, as she declared herself “the only person on this stage who has beaten an incumbent Republican anytime in the past 30 years.”

Klobuchar throws punches.

Yet while she described herself as a winner tethered to the Midwest, somebody whose friends and neighbors hail from flyover country, she didn’t come out of Tuesday’s debate with any significant headlines of her own.

The only vetting of Buttigieg came from the moderator Abby Phillip on race.

Mr. Buttigieg deftly dodged by suggesting that the black voters who “know me best” — in his native South Bend — chose him twice to lead the city. And he cited recent endorsements from Representative Anthony Brown of Maryland and Mayor Quentin Hart of Waterloo, Iowa, who this week became the two most prominent African-American elected officials to back him.

Biden avoids attacks.

Mr. Biden, who flew under the radar particularly at the last debate, often stayed in his comfort zones — discussing foreign policy and health care — and he was not the center of the kind of memorable exchanges that had dealt his campaign blows earlier in the race.

Volcanic ash, more generally known as tephra, sometimes hides in ice. It’s a special find because it can be geochemically tied to a specific volcano. “The tephra comes from the magma itself,

Sulfur is also indicative of a past eruption. Sulfur dioxide, a gas commonly belched by erupting volcanoes, reacts with water in the atmosphere to create sulfate aerosols. These tiny particles can linger in the stratosphere for years, riding wind currents, but they, like tephra, eventually fall back to Earth.

The ice also carries a time stamp. Dr. McConnell and his colleagues look for variations in elements like sodium, which is found in sea spray that’s seasonally blown inland. By simply counting annual variations in these elements, it’s possible to trace the passage of time, Dr. McConnell said. “It’s like a tree-ring record.”

In layers of ice corresponding to the early months of 43 B.C., they spotted large upticks in sulfur and, crucially, bits of material that were probably tephra. The timing caught the scientists’ attention.

Researchers have previously hypothesized that an environmental trigger may have helped set in motion the crop failures, famines and social unrest that plagued the Mediterranean region at that time. But until now, “There hasn’t been the kind of data that these scholars brought forth to really get those theories into the mainstream,”

The match was spot on, Dr. Plunkett said. “There are some events that are tricky. With Okmok, there’s nothing else that looks like it.”

This eruption was one of the largest of the last few millenniums, Dr. McConnell and his collaborators concluded, and the sulfate aerosols it created remained in the stratosphere for several years. These tiny particles are particularly good at reflecting sunlight, which means they can temporarily alter Earth’s climate.

“They’ve created, for a short term, global cooling events,”

Using climate models to simulate the impact of an Okmok eruption, Dr. McConnell and his collaborators estimated that parts of the Mediterranean, roughly 6,000 miles away, would have cooled by as much as 13.3 degrees Fahrenheit.

Rain patterns changed as well — some regions would have been drenched by 400 percent more precipitation than normal, the modeling revealed.

That climate shock came at precisely the wrong time, Dr. Clark said. “This was a period of Mediterranean-wide political, social and economic upheaval.”

Historical records compiled by Roman writers and philosophers note food shortages and famines. In 43 B.C., Mark Antony, the Roman military leader, and his army had to subsist on wild fruit, roots, bark and “animals never tasted before,” the philosopher Plutarch wrote.

For a society already reeling from the assassination of Julius Caesar the year before, such trying conditions might have exacerbated social unrest, the researchers concluded. They might even have kick-started transfers of political power that led to the rise of the Roman Empire.

“It’s an incredible coincidence that it happened exactly in the waning years of the Roman Republic when things were falling apart,”

The links in the study are probable, but not definite. “They’re not being heavy handed and saying this is absolutely it,” Dr. Holmberg said.

Egyptian society, before the installation of the Aswan Low Dam in the early 20th century, was anchored by the annual summer flooding of the Nile River. These summer floods, sustained by monsoon rains in the highlands of Ethiopia, delivered irrigation and silt, both critical to Egypt’s agrarian society. “The whole rhythm of the year was built around responding to the flood,” Dr. Manning of Yale said.

But volcanic eruptions, even those on the other side of the world, could have disrupted that flooding, Dr. Manning and his colleagues recently showed. Using records from Cairo’s Nilometer — an octagonal marble column that was used for recording Nile flood height from 622 to 1902 A.D., the team found that flooding tended to be weaker, or entirely absent, during years when there was a large volcanic eruption somewhere in the world.

he culprit, the team reasoned in a paper published a few years ago, was cooling caused by sulfate aerosols. When Earth cools after a large eruption, its atmospheric circulation patterns change. That can shift the invisible meeting point of Northern and Southern Hemisphere trade winds — the Intertropical Convergence Zone — that affects where monsoon rains tend to fall. When less precipitation falls over Ethiopia, home to a major tributary of the Nile, there’s less water available for flooding that year.

Ptolemaic-era records revealed that this reduced flooding had socioeconomic and political consequences. Revolts increased in the years following “Nile failure,” Dr. Manning and his colleagues found. Priestly decrees — intended to establish the political legitimacy of Greek rulers — also became more commonplace.

“There are still large unsourced mystery eruptions up until the early 19th century.”

Right now, roughly a dozen volcanoes are erupting. In all likelihood, they’re nothing to worry about — it’s doubtful you’ve even heard of them. But every once in a while, there’s bound to be a really big eruption. How its effects ripple around the world awaits to be seen.

built in 1020 by Werner

in the Aargau

in what is now Switzerland

rebelled against the German king Otto I in 950

Rudolf II of Habsburg (died 1232)

Rudolf III’s descendants, however, sold their portion, including Laufenburg, to Albert IV’s descendants before dying out in 1408

Albert IV’s son Rudolf IV of Habsburg was elected German king as Rudolf I in 1273. It was he who, in 1282, bestowed Austria and Styria on his two sons Albert (the future German king Albert I) and Rudolf (reckoned as Rudolf II of Austria). From that date the agelong identification of the Habsburgs with Austria begins

the most formidable dynasty was no longer the Habsburg but the Bourbon. In the War of the Grand Alliance (1689–97) the rising powers that 100 years earlier had been Habsburg Spain’s principal enemies and feeble France’s most fluent encouragers

Apart from the Bourbon ascendancy

The physical debility of Charles II of Spain was such that no male heir could be expected to be born to him

his crowns would pass to the electoral prince of Bavaria, Joseph Ferdinand, son of his niece Maria Antonia, daughter of the emperor Leopold I.

Charles II’s next natural heirs were the descendants (1) of his half-sister, who had married Louis XIV of France, and (2) of his father’s two sisters, of whom one had been Louis XIV’s mother and the other the emperor Leopold I’s

Critical tension developed: on the one hand neither the imperial Habsburgs nor their British and Dutch friends could consent to their Bourbon enemy’s acquiring the whole Spanish inheritance

Charles II in the meantime regarded any partition of his inheritance as a humiliation to Spain: dying in 1700, he named as his sole heir a Bourbon prince, Philip of Anjou, the second of Louis XIV’s grandsons. The War of the Spanish Succession ensued

To allay British and Dutch misgivings, Leopold I and his elder son, the future emperor Joseph I, in 1703 renounced their own claims to Spain in favour of Joseph’s brother Charles, so that he might found a second line of Spanish Habsburgs distinct from the imperial

Sardinia, however, was exchanged by him in 1717 for Sicily, which the peacemakers of Utrecht had assigned to the House of Savoy.

Charles remained technically at war with Bourbon Spain until 1720

Meanwhile the extinction of the Spanish Habsburgs’ male line and the death of his brother Joseph left Charles, in 1711, as the last male Habsburg. He had therefore to consider what should happen after his death. No woman could rule the Holy Roman Empire, and furthermore the Habsburg succession in some of the hereditary lands was assured only to the male line

he issued his famous Pragmatic Sanction of April 19, 1713, prescribing that, in the event of his dying sonless, the whole inheritance should pass (1) to a daughter of his, according to the rule of primogeniture, and thence to her descendants; next (2) if he himself left no daughter, to his late brother’s daughters, under the same conditions; and finally (3) if his nieces’ line was extinct, to the heirs of his paternal aunts

The attempt to win general recognition for his Pragmatic Sanction was Charles VI’s main concern from 1716 onward

By 1738, at the end of the War of the Polish Succession (in which he lost both Naples and Sicily to a Spanish Bourbon but got Parma and Piacenza

acknowledged the Pragmatic Sanction. His hopes were illusory: less than two months after his death, in 1740, his daughter Maria Theresa had to face a Prussian invasion of Silesia, which unleashed the War of the Austrian Succession

Bavaria then promptly challenged the Habsburg position in Germany; and France’s support of Bavaria encouraged Saxony to follow suit and Spain to try to oust the Habsburgs from Lombardy

The War of the Austrian Succession cost Maria Theresa most of Silesia, part of Lombardy, and the duchies of Parma and Piacenza (Treaty of Aix-la-Chapelle, 1748) but left her in possession of the rest of her father’s hereditary lands

her husband, Francis Stephen of Lorraine, who in 1737 had become hereditary grand duke of Tuscany, was finally recognized as Holy Roman emperor, with the title of Francis I. He and his descendants, of the House of Habsburg–Lorraine, are the dynastic continuators of the original Habsburgs

An Austro-French entente was subsequently maintained until 1792: the marriage of the archduchess Marie-Antoinette to the future Louis XVI of France (1770) was intended to confirm it

the Habsburgs exerted themselves to consolidate and to expand their central European bloc of territory

when the emperor Francis I died (1765), his eldest son, the emperor Joseph II, became coregent with his mother of the Austrian dominions, but Joseph’s brother Leopold became grand duke of Tuscany

The northeastward expansion of Habsburg central Europe, which came about in Joseph II’s time, was a result not so much of Joseph’s initiative as of external events: the First Partition of Poland (1772)

The French Revolutionary and Napoleonic Wars brought a kaleidoscopic series of changes

On Napoleon’s downfall the Congress of Vienna (1814–15) inaugurated the Restoration, from which the battered House of Habsburg naturally benefitted

a brother of the Holy Roman emperors Joseph II and Leopold II, had in 1771 married the heiress of the House of Este; and Napoleon’s Habsburg consort, Marie Louise

The history of the House of Habsburg for the century following the Congress of Vienna is inseparable from that of the Austrian Empire

German, Italian, Hungarian, Slav, and Romanian—gradually eroded. The first territorial losses came in 1859, when Austria had to cede Lombardy to Sardinia–Piedmont, nucleus of the emergent kingdom of Italy

Next, the Seven Weeks’ War of 1866, in which Prussia, exploiting German nationalism, was in alliance with Italy, forced Austria both to renounce its hopes of reviving its ancient hegemony in Germany and to cede Venetia.

Franz Joseph took a step intended to consolidate his “multinational empire”

he granted to that kingdom equal status with the Austrian Empire in what was henceforth to be the Dual Monarchy of Austria–Hungary.

The ardent German nationalists of the Austrian Empire, as opposed to the Germans who were simply loyal to the Habsburgs, took the same attitude as did the Magyars

Remote from Austria’s national concerns but still wounding to the House of Habsburg was the fate of Franz Joseph’s brother Maximilian: set up by the French as emperor of Mexico in 1864

In 1878 Austro-Hungarian forces had “occupied” Bosnia and Herzegovina, which belonged to declining Turkey

World War I led to the dismemberment of the Habsburg Empire. While Czechs, Slovaks, Poles, Romanians, Serbs, Croats, Slovenes, and Italians were all claiming their share of the spoil, nothing remained to Charles, the last emperor and king, but “German” Austria and Hungary proper

Working along an east-west transect through central England and Wales, the scientists discovered that the mix of Y-chromosomes characteristic of men in the English towns was very different from that of men in the Welsh towns: Wales was the primary Celtic holdout in Western Britannia during the ascendance of the Anglo-Saxons. Using computer analysis, the researchers explored how such a pattern could have arisen and concluded that a massive replacement of the native fourth-century male Britons had taken place. Between 50 percent and 100 percent of indigenous English men today, the researchers estimate, are descended from Anglo-Saxons who arrived on England’s eastern coast 16 centuries ago.

So what happened? Mass killing, or “population replacement,” is one possible explanation. Mass migration of Anglo-Saxons, so that they swamped the native gene pool, is another.

Yet no archaeological or historical evidence from the fifth and sixth centuries hints at the immense scale of violence or migration that would be necessary to explain this genetic legacy. The science hinted at an untold story.

across entire fields of inquiry, the traditional boundaries between history and prehistory have been melting away as the study of the human past based on the written record increasingly incorporates the material record of the natural and physical sciences.

The study of the human past, in other words, has entered a new phase in which science has begun to tell stories that were once the sole domain of humanists.

Thomas had found that genetically, not one of the English towns he sampled was significantly different from the others. Welsh towns, on the other hand, were significantly different from each other and from the English towns.

Most importantly, he found that inhabitants of  the Dutch province of Friesland were indistinguishable genetically from the English town-dwellers. Friesland is one of the known embarkation points of the Angl0-Saxons--and the language spoken there is the closest living relative to English.

The implications are profound: “Suddenly, we have all these genuine historical observations that need to be taken on board by historians and archaeologists and they raise a whole series of new questions, focusing particularly on…what is going on at the intimate level of this new civilization that is being born in the ruins of the Roman empire. The history of Europe will never be the same.”

But most archaeologists and historians who understand the economic capacity of the era, he noted, “find such massive contributions to the English gene pool to be completely unacceptable.

“But still, the genetic data are quite robust,” Thomas pointed out. “This is where the idea of an apartheid-like social structure comes in.” He has advanced a theory that a sexually biased, ethnically driven reproductive pattern, in which Anglo-Saxon males fathered children with Anglo-Saxon females and possibly Celtic females, while the reproductive activities of Romano-Celtic males were more restricted, is the most plausible explanation for the demographic, archaeological, and genetic patterns seen today. 

In an attempt to explain the remarkable similarity between Frisian and English towns, Thomas and colleagues constructed a population simulation model on a computer. He tested many theories: common ancestry dating back to the Neolithic age; background migration over centuries and even millennia; and a mass-migration event that, he calculated, would have had to involve at least 50 percent replacement--the movement, in other words, of a million people.

Simulating such an advantage, and choosing an arbitrary figure of 10 percent migration, Thomas found that the Y chromosomes of native Britons could have been replaced in the general population in as few as five generations. 

by the 1970s, he continues, scholars began to realize there never was a homogenous “nation” of Germans in northern Europe, just small tribes that coalesced along the Roman frontier in what were political and cultural, rather than biological, federations, as their very names suggest: Alemanni, meaning “all men”; Goths, meaning “good guys.”

The Romans, scholars believed, provided a common enemy, and that unified the disparate Germanic tribes. This line of reasoning led historians to a further thought: maybe the Anglo-Saxon identity was similarly socially constructed, and not biological after all

More recent historical scholarship, therefore, has increasingly emphasized discovering the extent to which the barbarian migrations were really a process of ethnogenesis--the creation of new ethnic identities, as the merchant’s story illustrates.

“There is lots of evidence for it,” McCormick says. “But now you have Mark Thomas telling us that you could actually study mating patterns. That is utterly unanticipated.” The work raises a host of new questions: What was women’s role in the barbarian settlements? Were Anglo-Saxon men mating with Celtic women? Or were there women in those invading boats, and if so, how many? What happened to the Romano-Celtic men? Were they killed? 

There is some support for this in ancient English laws, which indicate that Britons and Anglo-Saxons were legally and economically different even in the seventh century, long after the initial migration. Thomas cited wergild (blood money) payments as one example: “Killing an Anglo-Saxon was a costly business, but killing a native Briton was quite cheap.” This points to differences in economic status. And differences in wealth “almost always result in differences in reproductive output,” he said. “Sometimes two- and three-fold differences.” To the extent Anglo-Saxons were able to have and support more children, this could lead to a gradual replacement of the indigenous Y-chromosome over many generations

The Y-chromosome can be a particularly revealing signature of the past when compared to other kinds of genetic data. Among African Americans in the United States, for example, Y-chromosomes are about 33 percent European, he says, though the proportion varies from city to city. But those same African Americans’ mitochondrial DNA, which comes from the female line, is only about 6 percent European. And that, says Reich, “tells you about the history of this country, in which men contributed about three-fourths of the European ancestry that is present in the African-American population data. The data speak to a history in which white male slaveowners exploited women of African descent--a fact that is well documented in the historical record. That there is evidence of this in genetic data should be no surprise.”

Most Americans associate Medellín with the drug cartels of that isolated region. But the remoteness has also preserved a genetic legacy that can be traced to the conquistadores. As described in a paper by Andrés Ruiz-Linares of University College London, the Y-chromosomes of men in Medellín are 95 percent European, while the mitochondrial DNA of the women is 95 percent Native American. Spanish men and Native American women created a new population--confirming the recorded history of the region.

The pattern of sexual exploitation by a dominant group seen in the preceding examples is not at all unusual in the human genetic record, says Reich’s frequent collaborator, Nick Patterson, a senior research scientist at the Broad Institute of MIT and Harvard. The Icelandic sagas record that the exiles who settled that island raided Scotland and Ireland, kidnapping Celtic women. And the genes corroborate this account. The mitochondrial DNA of the women is Celtic, the Y-chromosomes are Nordic

Fortunately, the science of the human past has progressed in these other areas no less than in the field of genetics. Innovations in archaeological analysis have had a profound impact

After the fall of the Roman empire, “you get this layer called ‘dark earth’” in the archaeological stratigraphy, he says. “People thought the empire fell and the cities turned into garden [plots]. That is how dark earth was understood up until about five years ago,

“In the Roman excavations,” says McCormick, “there were pots and stone buildings and columns.” But then suddenly you get a layer of nothing but dark, humus-looking soil. What actually happened, Galinié and others have found, is that people shifted to organic building materials. “They had thatched roofs and wooden houses, they didn’t have Roman garbage removal, and they just dumped the ashes and charcoal from their hearths out in the road and all of that compacted. It is extremely rich, extremely dense,

These alternatives reveal how differently things might have gone for the United States had Founders like Washington not humbly sought the wisdom of the ancients. By staying rooted in history, America did not descend into France’s revolutionary tyranny or the totalitarian utopianism of the 20th century

Generations of Americans — and Romans — grappled with many of the problems plaguing our society in modern ways, like complicated wars, crooked politicians, economic disparity and the disintegration of the civic mores that bind a people together. Understanding the successes and failures of our republican forebears does not guarantee we can solve all our problems, but it does promise that we’ll bring the arsenal of history’s wisdom with us into the fray.

They were incredibly efficient.

they often followed a remarkably straight trail across the countryside

weary travelers could guide themselves by a detailed collection of mile markers.

their design always employed multiple layers for durability and flatness.

Roads were built with a crown and adjacent ditches to ensure easy water drainage, and in some rainy regions they were even nestled on raised berms known as “aggers” to prevent flooding.

They were easy to navigate.

They were expertly engineered.

Roman roads were also lined with state-run hotels and way stations.

They included a sophisticated network of post houses and roadside inns.

“all roads lead to Rome,”

horse changing stations, or “mutationes,” which were located every ten miles along most routes.

Switching horses was especially important for imperial couriers, who were tasked with carrying communications and tax revenues around the Empire at breakneck speed.

They were well-protected and patrolled.

most Roman roads were patrolled by special detachments of imperial army troops known as “stationarii” and “beneficiarii.”

hey also doubled as toll collectors.

They allowed the Romans to fully map their growing empire.

the Peutinger Table is a 13th century copy of an actual Roman map created sometime around the 4th century A.D.

They were built to last.

Roman roads remained technologically unequaled until as recently as the 19th century.

Many Roman roads were used as major thoroughfares until only recently,

Rome’s enduring engineering legacy can also be seen in the dozens of ancient bridges, tunnels and aqueducts still in use today.

The republic’s first significant expansion came in 396 B.C., when Rome defeated and captured the Etruscan city of Veii.

Over the next two-and-a-half centuries, Rome spread throughout the Italian Peninsula by conquering territories and either making them independent allies or extending Roman citizenship.

This strategy of absorption changed as Rome conquered its first overseas territories.

Taking this new territory wasn’t something Rome had initially intended to do.

After Rome pushed Carthage out of Sicily in the first war, the Italian island became Rome’s first foreign province.

his time, Rome destroyed the capital city of Carthage in modern-day Tunisia and enslaved the city’s inhabitants. It also conquered all of Carthage’s territory in North Africa and made it a Roman province.

In the 60s B.C.E., Rome extended into the Middle East and captured Jerusalem. These eastern territories had old and complex political systems that Rome largely left in place.

When Rome took over, it introduced some Roman systems, while still trying to keep power in the hands of local leaders to ensure a smooth transition.

The republic fell for good when his great-nephew, Augustus Caesar, declared himself emperor in 27 B.C. Now, the sprawling state of Rome was officially the Roman Empire.

The empire reached its peak in 117 A.C. when it fortified its borders and reached all the way into England. But after that, it stopped expanding, because leaders didn’t think it was worth the time and energy.

the extension of imperial bureaucracy made the empire much harder to manage; and this was one of the reasons that the empire began to divide itself

In the east, the Roman Empire—also known as the Byzantine Empire—continued on for over a millennium.

The essence of Christianity revolves around the life, death and Christian beliefs on the resurrection of Jesus. Christians believe God sent his son Jesus, the messiah, to save the world. They believe Jesus was crucified on a cross to offer the forgiveness of sins and was resurrected three days after his death before ascending to heaven.

Christians contend that Jesus will return to earth again in what’s known as the Second Coming.

The Holy Bible includes important scriptures that outline Jesus’s teachings, the lives and teachings of major prophets and disciples, and offer instructions for how Christians should live.

Both Christians and Jews follow the Old Testament of the Bible, but Christians also embrace the New Testament.The cross is a symbol of Christianity.The most important Christian holidays are Christmas (which celebrates the birth of Jesus) and Easter (which commemorates the resurrection of Jesus).

Most historians believe that Jesus was a real person who was born between 2 B.C. and 7 B.C.

According to the text, Jesus was born to a young Jewish virgin named Mary in the town of Bethlehem, south of Jerusalem in modern-day Palestine.

he aimed to reform Judaism—not create a new religion.

Some of the main themes that Jesus taught, which Christians later embraced, include:Love God.Love your neighbor as yourself.Forgive others who have wronged you.Love your enemies.Ask God for forgiveness of your sins.Jesus is the Messiah and was given the authority to forgive others.Repentance of sins is essential.Don’t be hypocritical.Don’t judge others.The Kingdom of God is near. It’s not the rich and powerful—but the weak and poor—who will inherit this kingdom.

Many scholars believe Jesus died between 30 A.D. and 33 A.D.

Jesus was arrested, tried and condemned to death. Roman governor Pontius Pilate issued the order to kill Jesus after being pressured by Jewish leaders who alleged that Jesus was guilty of a variety of crimes, including blasphemy.

The Christian Bible is a collection of 66 books written by various authors. It’s divided into two parts: The Old Testament and the New Testament.

The Old Testament, which is also recognized by followers of Judaism, describes the history of the Jewish people, outlines specific laws to follow, details the lives of many prophets, and predicts the coming of the Messiah.

The New Testament was written after Jesus’s death. The first four books—Matthew, Mark, Luke and John—are known as the “Gospels,” which means “good news.” These texts, composed sometime between 70 A.D. and 100 A.D., provide accounts of the life and death of Jesus.

According to the Bible, the first church organized itself 50 days after Jesus’s death on the Day of Pentecost—when the Holy Spirit was said to descend onto Jesus’s followers.

Early Christians considered it their calling to spread and teach the gospel. One of the most important missionaries was the apostle Paul, a former persecutor of Christians.

Many historians believe Christianity wouldn’t be as widespread without the work of Paul. In addition to preaching, Paul is thought to have written 13 of the 27 books in the New Testament.

Early Christians were persecuted for their faith by both Jewish and Roman leaders.

n 64 A.D., Emperor Nero blamed Christians for a fire that broke out in Rome. Many were brutally tortured and killed during this time.

tarting in 303 A.D., Christians faced the most severe persecutions to date under the co-emperors Diocletian and Galerius. This became known as the Great Persecution.

When Roman Emperor Constantine converted to Christianity, religious tolerance shifted in the Roman Empire.

In 313 A.D., Constantine lifted the ban on Christianity with the Edict of Milan. He later tried to unify Christianity and resolve issues that divided the church by establishing the Nicene Creed.

When the Roman Empire collapsed in 476 A.D., differences emerged among Eastern and Western Christians.

In 1054 A.D., the Roman Catholic Church and the Eastern Orthodox church split into two groups

Between about 1095 A.D. and 1230 A.D., the Crusades, a series of holy wars, took place. In these battles, Christians fought against Islamic rulers and their Muslim soldiers to reclaim holy land in the city of Jerusalem.

In 1517, a German monk named Martin Luther published 95 Theses—a text that criticized certain acts of the Pope and protested some of the practices and priorities of the Roman Catholic church.

Luther’s ideas triggered the Reformation—a movement that aimed to reform the Catholic church.

As a result, Protestantism was created, and different denominations of Christianity eventually began to form

Catholic, Protestant and (Eastern) Orthodox.

Our earliest written accounts of who Muhammad was, what he did and how Islam began come more than a century after his death. This is an authorized, canonical biography written by ibn Ishaq in Baghdad in the mid-8th century. But even that book has been lost. It only survives in editions and excerpts from two other Muslim scholars (ibn Hisham and al-Tabari) writing in the 9th and early 10th centuries, respectively.

These narratives come far too long after the events in question to be taken at anything like face value in historical terms. Memories of who Muhammad and his milieu were and what they did were passed down as oral traditions for three or four generations before being written down. They then passed through new rounds of editing and reshaping and recension for another century. We know from ancient and contemporary examples that such oral traditions usually change radically over even short periods of time to accommodate the present realities and needs of the communities in which they are passed down

To get your head around the challenge, imagine we had no written records fo the American Civil War and our only knowledge of it came from stories passed down orally for the generations until the the US government had a scholar at the library of Congress pull them together and create an authorized history in say 1985.

Unsurprisingly, recent studies using the tools and standards historians apply to other eras suggest that the beginnings of Islam were quite different from the traditional or canonical accounts most of us are familiar with.

If these two things, the conventional narrative of events and the process of making sense of the sources and weighing their credibility, can be woven together the end result is fascinating and more compelling than a more cinematic narrative. This Morris accomplishes very well

Morris, the author, begins with a discussion of just this issue, how the historian can balance the need for comprehensible narrative of William’s conquest of England with a candid explanation of how little we know with certainty and how much we don’t know at all. This is a literary challenge of the first order, simultaneously building your narrative and undermining it

Like the Norman Conquest but on a vastly greater scale, the victory at Yarmouk would have a profound linguistic and cultural impact which lasts down to today. It is why the Levant, Syria and Egypt now all speak Arabic. It is also why the Middle East is dominated by Islam rather than Christianity.

History has a small number of these critical linguistic inflection points. Alexander the Great’s conquests made Greek the lingua franca and the language of government and most cities throughout the eastern Mediterranean, which it remained for almost a thousand years.

The fact that the Arab conquests so rapidly erased Greek from this region is a clue that its roots never ran that deep and that the Semitic languages that remained the spoken language of the rural masses, particularly Aramaic, may have been more porous and receptive to the related language of Arabic.

Earlier I referred to Heraclius as perhaps the last Roman Emperor. This is because most historians mark the change from the Roman to the Byzantine periods at the Muslim conquests

The people we call the Byzantines never called themselves that. They remained “Romans” for the next eight centuries until the Ottoman Turks finally conquered Constantinople in 1453.

But after the Muslim conquest, the Roman state starts to look less like a smaller Roman empire and more like the other post-Roman successor states in the West. It is smaller and more compact, more tightly integrated in language, religion, economy and culture. From here what we can now call Byzantium enters into a dark, smoldering and more opaque period lasting some two centuries of holding on against repeated Muslim incursions and threat.

What captures my attention is this peculiar kind of reversal of fortune, spectacular victories which are not so much erased as rendered moot because they are rapidly followed by far more cataclysmic defeats.

As Watts puts the point, the principal purpose of his book is to allow “readers to better appreciate the serious problems that result both from politicians who breach a republic’s political norms and from citizens who choose not to punish them for doing so.

In Watts’s telling of the Roman Republic’s agonizing death, slow-moving structural transformations gradually sowed the seeds of demise.

As the population exploded and the economy became ever more sophisticated, the growing share of poor citizens started to demand redress. But since the institutions of the republic were dominated by patricians who had much to lose from measures like land reform, they never fully addressed the grievances of ordinary Romans.

With popular rage against increasingly dysfunctional institutions swelling, ambitious patricians, determined to outflank their competitors, began to build a fervent base of support by making outsize promises. It was these populares — populists like Tiberius Gracchus and his younger brother Gaius — who, in their bid for power, first broke some of the republic’s most longstanding norms.

The transformation of Rome’s army compounded the challenge of growing inequality. In the early days of the republic, soldiers thought of their participation in military service as a civic duty. Commanders hoped to win great honors and perhaps to attain higher office

But by the late second century B.C., the army had essentially been privatized. Commanders knew that the plunder of new lands could garner them vast riches. Their soldiers signed up for the ride in the hope of gaining a generous allotment of land on which to start a farm.

It took a long time for these tensions to build. But once they reached a critical point, Rome’s descent into chaos and dysfunction was astonishingly swift.

During the century and a half between the days of Pyrrhus and the rise of Tiberius Gracchus, there had not been a single outbreak of large-scale political violence. Then Tiberius pushed through land reforms in defiance of the Senate’s veto. In the ensuing fracas, he and hundreds of his followers were murdered. The taboo on naked power politics had been broken, never to recover

“Within a generation of the first political assassination in Rome, politicians had begun to arm their supporters and use the threat of violence to influence the votes of assemblies and the election of magistrates. Within two generations, Rome fell into civil war.”

If we are to avoid the fate that ultimately befell Rome, Watts cautions, it is “vital for all of us to understand how Rome’s republic worked, what it achieved and why, after nearly five centuries, its citizens ultimately turned away from it and toward the autocracy of Augustus.”

the sheer repetitiveness of the calamities that befell Rome only serves to underline the book’s most urgent message.

Like the original populist, Trump was propelled to power by the all-too-real failures of a political system that is unable to curb growing inequality or to mobilize its most eminent citizens around a shared conception of the common good.

And like Gracchus, Trump believes that, because he is acting in the name of the dispossessed, he is perfectly justified in shredding the Republic’s traditions.