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New weapons technology prompted new defensive technologies, for example the introduction of cross-bows led quickly to the adoption of plate armour rather than chain mail.

Siege Towers Battering Rams Cats and Weasels Chemical, Biological and Psychological Warfare Mining: undermining castle walls

Siege Towers

Ancient Greek technology developed at an unprecedented speed during the 5th century BC, continuing up to and including the Roman period, and beyond. Inventions that are credited to the ancient Greeks such as the gear, screw, rotary mills, screw press, bronze casting techniques, water clock, water organ, torsion catapult and the use of steam to operate some experimental machines and toys and a chart to find prime numbers.

further exploitation on a

early 1230's to launch fireworks and in weapons.

Knights were replaced by the foot soldier who carried firearms.

between 1590 and 1608

“containment.”

President Harry Truman (1884-1972) agreed. “It must be the policy of the United States,” he declared before Congress in 1947, “to support free peoples who are resisting attempted subjugation…by outside pressures.”

deadly "arms race

Cold War

crucial not to lose too much ground to the Soviets. In addition, this demonstration of the overwhelming power of the R-7 missile--seemingly capable of delivering a nuclear warhead into U.S. air space--made gathering intelligence about Soviet military activities particularly urgent.

Space exploration served as another dramatic arena for Cold War competition. On October 4, 1957, a Soviet R-7 intercontinental ballistic missile launched Sputnik

Mind Your Manors   In the days of decentralized government, a fief was like its own mini country that produced pretty much everything that was needed from food to weapons to tools. At the heart of a lord's fief was the manor-large estates. The manor was where the lord's family, servants, and his knights lived. At first they began as large houses, but over the years became full castles as walls, towers, and moats were added for protection. Manors were always in the country and surrounded by farmland and woods. Some of the wealthier lords even had more than one manor.   A manor was the center of the community. Not only did it serve as a place for peasants to run to in times of war, but was the political center as well. When he wasn't out fighting for his Lord, the lord of a fief would act as a judge in settling disputes. He also appointed officials who would collect taxes and rent from the peasants and townspeople. Large manors had their own churches complete with their own clergy, as well as a marketplace where locals could buy and sell goods. At any time one time, hundreds of people from priests, knights, squires, entertainers, merchants, peasants, and visiting nobles would head to the manor.   For the Lady of the manor her day was spent overseeing servants & caring for the children. When her husband was away (or killed in battle) the Lady of the manor assumed the same roles her husband did, appointing officials and acting as judge. In the early Middle Ages a woman owning property was not all that uncommon.

Living in a castle might sound romantic but it's not all that it was cracked up to be. Medieval manors were built of wood and stone and built on a large scale. Glass was rare and extremely expensive so windows often were either left open or covered with cloth during the winter. The only means of heating a manor was the fireplace. Each major room had its own. The Great Room, which as its name implies was the center of manor life.  The Great Room was heated and lit by an enormous fireplace, big enough to stand in. The Great Room was where all of the eating, drinking, debating, politicking, and merry making and other business was conducted. Speaking of doing business, how did medieval people use the bathroom? All manor houses had privies either outside or inside the castle. The ones inside were nothing more than a seat that emptied directly into the moat. ​ To modern observers manors would have been filthy places. Fleas were common and the smell of hundreds of unwashed people (who often only bathed once a week) would have pervaded. Rats and mice also would have been running around as food was thrown directly on the floor during meal times. At night the servants swept the floor and rushes (dried river reeds) would be spread on the floor and all minor visitors and knights would bed down. The manor was often dark, cold, and smoky. To liven things up a bit, tapestries would be commissioned to decorate the walls.

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