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In an effort to counter the Common Core push for detextualized skill-based instruction and assessment that has further marginalized social studies education, the NCSS is promoting what it calls “College, Career, and Civic Life (C3) Framework,”

through its choice of partners, its rigid adherence to Common Core lesson guidelines, and the sample material it is promoting, the NCSS has virtually abandoned not just meaningful social studies education, but education for democracy and citizenship as well.

My biggest problem with the C3 Framework as presented in this new document on instruction is its attempt to adopt a fundamentally flawed Common Core approach to social studies and history based on the close reading of text without exploring historical context

how Common Core as it is being implemented will mean the end of history.

In the C3 Framework inquiry approach, students start in Dimension 1 by “developing questions and planning inquiries,” however the inquiry is really already “planned” because material they use is pre-selected. It is also not clear what their questions will be based on since they do not necessarily have any background on the subject. In Dimension 3 students evaluate sources using evidence, but again, devoid of historical context. Dimension 4 is supposed to be C3’s chief addition to Common Core. In Dimension 4 students are supposed to plan activities and become involved in civic life, although of course their options have again already been pre-prescribed.

In Dimension 2, as they read the text, which sixth graders and many eighth graders will find difficult, students discuss “How was citizenship revolutionary in 1776?” The question requires them to assume that colonists had already formulated a concept of citizenship, which I do not believe they had, a concept of nation, which they definitely did not, and an understanding that somehow what they were doing was “revolutionary,” which was still being debated.

Some of the organizations involved in writing the C3 Frameworks have positions so politically skewed to the right that NCSS should be embarrassed about including them in the project. In this category I include Gilder Lehrman, The Bill of Rights Institute, and The Center for Economic Education and Entrepreneurship (CEEE).

Conspicuously missing from the group of contributors is the Zinn Education Project which would have provided a radically different point of view.

What we have in the C3 Framework is standard teaching at best but a lot of poor teaching and propaganda as well.

Instead of challenging Common Core, the NCSS begs to be included. Instead of presenting multiple perspectives, it sells advertising in the form of lessons to its corporate and foundation sponsors. But worst in their own terms, in a time of mass protest against police brutality by high school and college students across the United States, active citizenship in a democratic society is stripped of meaning and becomes little more than idle discussion and telling student to vote when they are eighteen.

But the geneticists see no trace of the Danelaw, the Danish rule over northern England from the ninth to the 11th century, nor of the Norman Conquest of England in 1066. The numbers of invaders may have been too small to leave a demographic imprint

in the case of the Normans, who had previously emigrated from southern Denmark to Normandy, it is hard to distinguish their genes from those of the earlier Danish invaders.

The people of the southern and central parts of England form a homogeneous population, but all around the Celtic periphery, in Cornwall, Wales and Scotland, lie small clusters of genetically different populations that have maintained their identity over the generations. This is a surprise, given that the Celtic peoples who ruled most of England until Caesar’s invasion in B.C. 55 were assumed to be fairly homogeneous.

The researchers found that the modern British population falls into 17 clusters altogether, based on genetic relatedness. Though very similar, the groups are genetically distinguishable, and even the main population cluster, that of southern and central England, is distinguishable from the populations of France, Germany and other European countries.

Dr. Donnelly and his colleagues managed to sidestep this recent churning of the population history by seeking out elderly people who lived in rural areas and whose grandparents had been born locally. Because individual genomes are composed of random samples of the four grandparents’ DNA, the researchers were in effect looking two generations into the past and testing the population of the late 19th century.

They analyzed the DNA of their 2,000 subjects at 500,000 sites along the genome, and then organized them into the 17 genetic clusters. They also analyzed the genomes of 6,000 Europeans in the same way, and could thus identify the source populations in Europe from which each of the 17 British clusters was derived.

The migrations revealed in that way match the known historical record but also point to events that have not been recorded, such as a major migration from northern France that accounts for about one-third of the ancestry of the average person in Britain.

“History is written by the winners, and archaeology studies the burials of wealthy people,” Dr. Donnelly said. “But genetic evidence is interesting because it complements that by showing what is happening to the masses rather than the elite.”

According to one study, enrollment fell by one-fifth, and students were 30 percent less likely to major in one of these subjects. Yale and Harvard, while making noises about grade inflation, have never instituted tough rules to stem it.

Overall, graded students are less interested in the topic at hand and — and, for obvious, common-sense reasons — more inclined to pick the easiest possible task when given the chance.

Grades should motivate certain students: those afraid of the stigma of a bad grade or those ambitious, by temperament or conditioning, to succeed in measurable ways.

Although recent research on the effects of grades is limited, several studies in the 1970s, 1980s and 1990s measured how students related to a task or a class when it was graded compared to when it was ungraded.

Our goal should be ending the centrality of grades altogether. For years, I feared that a world of only A’s would mean the end of meaningful grades; today, I’m certain of it. But what’s so bad about that?

Yes, the student who gets a 100 on a calculus exam probably grasps the material better than the student with a 60 — but only if she retains the knowledge, which grades can’t show.

We need to move to a post-grading world. Maybe that means a world where there are no grades — or one where, if they remain, we rely more on better kinds of evaluation.

According to a 2012 study by the Chronicle of Higher Education, GPA was seventh out of eight factors employers considered in hiring, behind internships, extracurricular activities and previous employment.

To top humanities PhD programs, letters of reference and writing samples matter more than overall GPA (although students are surely expected to have received good grades in their intended areas of study).

Right now, students end up being evaluated twice: once with an inflated and meaningless letter grade, then again by teachers asked to write letters of recommendation.

They said employers want a GPA of 3.0 or even 3.5. But again, that standard would include almost every Harvard student — which suggests that GPAs serve not to validate students from elite schools but to keep out those from less-prestigious schools and large public universities, where grades are less inflated. Grades at community colleges “have actually dropped” over the years, according to Stuart Rojstaczer, a co-author of the 2012 grade-inflation study.

That means we have two systems: one for students at elite schools, who get jobs based on references, prestige and connections, and another for students everywhere else, who had better maintain a 3.0.

Students can compare evaluations from different classes, too, “read across all of them, see what they need improvement on.” And when they graduate, they — and employers or grad-school admission offices — get far more than a printed page of grades.

The trouble is that, while it’s relatively easy for smaller colleges to go grade-free, with their low student-to-teacher ratios, it’s tough for professors at larger schools, who must evaluate more students, more quickly, with fewer resources.

teaching five classes for poverty wages can’t write substantial term-end comments, so grades are a necessity if they want to give any feedback at all.

perhaps the small, progressive colleges can inspire other schools to follow, as they have in, say, abolishing the SAT as an admissions requirement

It would mean hiring more teachers and paying them better (which schools should do anyway). And if transcripts become more textured, graduate-school admission offices and employers will have to devote more resources to reading them, and to getting to know applicants through interviews and letters of reference

When I think about getting rid of grades, I think of happier students, with whom I have more open, democratic relationships.

Even in my Yale classrooms filled with overachievers, most of whom want to learn for the sake of learning, some respond well to the clarity of a grade.

That same year, Britain's left-leaning Guardian newspaper ran a public campaign targeting a critical county in Ohio with a letter-writing blitz, urging people there to vote for John Kerry.

It was a bid to give foreigners a say in the US presidential election. Clark County was a swing district in a swing state; in 2000 Al Gore won the area by a narrow margin.

In 2008 of course the world rallied firmly behind Barack Obama. Two hundred thousand people turned out to see the candidate in Berlin before the election. Italian trattorias started a roaring trade in Obama pizzas, a curious, un-Italian mix of ham and pineapple toppings.

So, what does the world make of Donald Trump? Mr Trump has some admirers in Europe. A few on the extreme end of the political spectrum like his tough line on immigration. Jean-Marie Le Pen, the founder of the French National Front, said if he were American he'd vote Trump.

What really matters is whether the 6-10% of voters in the middle of the American political spectrum, the people who actually decide elections here, are swayed by global opinion. And they may be, for two reasons.

middle-class and working-class people have been neglected by the existing political establishment,

There are echoes of Trumpism in the nationalist parties of Britain, Denmark, Netherlands, Greece as well as France.

Here's a sample of the public disapproval. Germany's Der Spiegel has called Trump the most dangerous man in the world. Britain's David Cameron says his plan to ban Muslims is divisive and unhelpful.

The French liberal newspaper Liberation has described him as a nightmare turned reality. JK Rowling tweeted that he's worse than Voldemort

Will the international reaction make a shred of difference to Trump's chances of getting nominated and then elected? 2004 would suggest not.

But the voices of support are drowned out by almost universal condemnation. When it comes to Trump, Europe is apoplectic. Fascinated, but appalled.

Invoking global opinion in the context of US elections is a fool's errand. Perfectly understandably, voters in Paris, Pennsylvania, really don't give a damn what voters in Paris, France, think about their political choices. And why should they?

At the time, a local newspaper editor told the BBC that it was the well-publicised letter campaign that lost it for the Democrats. It will go down in history as one of the biggest fiascos in foreign meddling.

Imagine if your much-respected but slightly annoying older sibling (the US) came home with a fantastically unsuitable date (Trump). Part of you is titillated but part of you is appalled, thinking, "Oh my God, this could go horribly wrong." After Super Tuesday, Europe is fast moving from the former to the latter.

Although America still feels under siege from Islamic extremism, American troops are not being killed in large numbers in Iraq and Afghanistan. Supporting Bush was in some ways a proxy for supporting those soldiers.

It's hard to know at this stage what impact foreign opinion will have in this race, but it's fairly clear the world is not going to suddenly fall in love with the man Republicans are rapidly choosing to be their candidate for the White House.

Mr. Hillary has also accused the county prosecutor, Mary Rain, of forsaking justice in the name of keeping a campaign promise: Ms. Rain was elected in 2013, in part on the strength of campaigning with Ms. Cyrus and promising to focus the energies of her small office on Garrett’s murder.

The suspicions and repercussions surrounding the boy’s death have rippled through time and distance. A key defense witness, for instance, suddenly discovered “Justice for Garrett” signs posted near his new workplace and home — each hundreds of miles from Potsdam. Mr. Hillary, now free on bail, found himself rearrested in September for allegedly violating an order of protection by using a drive-through A.T.M. at the bank where Ms. Cyrus worked.

Garrett Phillips was an ebullient child despite an early-life tragedy: When he was a toddler, his father, Robert — an amiable grounds worker at the State University of New York at Potsdam — suffered a brain aneurysm and never recovered. He died before Garrett was 3.Though Garrett never knew his father, the boy emulated him as he grew. Like his father, he hunted and fished; played any sport involving a ball; and balanced his rowdy and respectful sides, rambunctious sometimes in public but polite to family and strangers.

On the afternoon of Oct. 24, 2011, Garrett was playing basketball at the middle school with some friends as rain fell intermittently. A little before 5 p.m., Tandy Cyrus called his cellphone and told him to go home to do schoolwork.

Garrett got on his caster board — something of a cross between a skateboard and a snowboard — and headed home, his progress captured by a series of surveillance cameras and later described in a police timeline.

Combing the apartment for evidence, investigators found a possible clue: The screen of the bedroom window, about 20 feet off the ground, was “bent outward,” according to the incident report. A tile seemed to be broken on the roof of a lower section of the building, about 10 feet below, and there was a gash in the grass

His appeal, as both a coach and a person, is evident: His energy is intense, but his smile is unencumbered. He said he had always loved the North Country region’s rural mountains and summertime greenery — when it was warm it reminded him of Jamaica — though he was aware of the cultural boundaries beyond campus.“You’re a black person,” he said in an interview. “You were viewed as such.”A year after being hired by Clarkson, Mr. Hillary found that his relationship with his longtime girlfriend, Stacia Lee, the mother of his three children, was struggling. At a bar called Ton’s, he became acquainted with a bartender, Tandy Cyrus.

“I go, ‘Listen. Help me understand. Are you and Tandy together?’” Deputy Jones said.Ms. Cyrus, 37, declined to be interviewed for this article, but Mr. Hillary said he had been harassed because of his relationship with her. “It’s not a community with a lot of interracial relationships,” he said, adding that he had “to be mindful” when he was out. “I would go to the local restaurant,” he said, and Deputy Jones’s “friends would come up to me and like, ‘You know you’re not supposed to be dating John’s girl.’”A few months after they met, Mr. Hillary and Ms. Cyrus moved in together, forming a household of five, including his teenage daughter, Shanna-Kay, and Ms. Cyrus’s two sons.

Lieutenant Murray saw Mr. Duff as deeply credible.“I just can’t bring myself to fathom why a collegiate person playing on a Division III soccer team with his entire future ahead of him would lie and perjure himself on a sworn statement for no reason,” he said.On the evening after the murder, Lieutenant Murray went to watch Clarkson’s men’s soccer squad and videotaped Mr. Hillary coaching the penultimate game of a rough season. (The 2011 Clarkson squad had more losses than goals.)According to a search-warrant application, as Mr. Hillary strode along the sideline, he seemed stiff and sedate and had a “significant limp in his right leg,” something the detective inferred would have been caused by jumping from a second-story window. Last year, though, The Watertown Daily Times posted a clip from Lieutenant Murray’s video: In it, Mr. Hillary appears to walk unhindered along the sidelines.

As the men were being questioned, detectives searched for damning evidence. They seized Mr. Hillary’s phone and examined the contents of his pockets and his socks. Nude photographs, fingerprints and palm prints were taken. Mr. Hillary’s car was searched. (The timing of the seizures, and of the subsequent search warrants, has been a focus of Mr. Hillary’s civil suit.) The police also obtained his DNA from a coffee cup and the butt of a cigarette.

. While Mr. Carson’s support was cut in half since the last time The Times and CBS News polled on the race in late October, Mr. Cruz has quadrupled his share. Senator Marco Rubio of Florida’s support stands at 9 percent, with the rest of the candidates at 4 percent or less.

Over all, 24 percent of voters expressed concern and 40 percent fear about what Mr. Trump would do if elected president, whereas 23 percent said they are concerned and 34 percent scared about the possibility of a Clinton presidency. Not surprisingly, voters were sharply divided along partisan lines.

The nationwide telephone poll was conducted Dec. 4-8 with 1,053 registered voters, including 431 Republican primary voters and 384 Democratic primary voters. The margin of sampling error is plus or minus 4 percentage points for registered voters and plus or minus 6 percentage points each for Republican and Democratic primary voters.

In a March 2008 campaign speech at the National Constitution Center in Philadelphia, Barack Obama, then a candidate, said:Most working- and middle-class white Americans don’t feel that they have been particularly privileged by their race. Their experience is the immigrant experience – as far as they’re concerned, no one’s handed them anything, they’ve built it from scratc

Obama then noted the consequences:So when they are told to bus their children to a school across town; when they hear that an African-American is getting an advantage in landing a good job or a spot in a good college because of an injustice that they themselves never committed; when they’re told that their fears about crime in urban neighborhoods are somehow prejudiced, resentment builds over time.

The Fairleigh-Dickenson poll suggests that liberals who seek to defend speech codes and trigger warnings, especially in schools and colleges, have ventured onto politically hazardous terrain.

Chait, himself a liberal, wrote:Liberals believe (or ought to believe) that social progress can continue while we maintain our traditional ideal of a free political marketplace where we can reason together as individuals. Political correctness challenges that bedrock liberal ideal. While politically less threatening than conservatism (the far right still commands far more power in American life), the p.c. left is actually more philosophically threatening. It is an undemocratic creed.

Salon published 312 comments on Walsh’s critique of Chait. Almost all of them were written by men and women on the left side of the political spectrum

Despite Salon’s progressive credentials, critics of political correctness substantially outnumbered defenders. Here’s a sampling of the majority view:

“AtheistLiberal” wrote: “P.C. culture deserves to be mocked because it is so pathetic. How pointing this out makes Chait look weak is beyond me.” Another asked: “How can we be equal if I’m constantly being told that my white male privilege blinds me and poisons my every thought?

The Chait vs. Walsh dispute crystallizes the conflict between those who feel that politically correct norms defy common sense and those who feel that such norms are essential to the empowerment of individuals and groups previously barred from full participation in society.

How many Democratic and independent voters share Trump’s implicit racial antipathy to the Black Lives Matter movement? How many worry that the police have backed off law enforcement in response to the so-called Ferguson effect, with a resulting increase in crime? And how many are offended by the concessions of university administrators to demands for speech codes, trigger warnings, “safe spaces” and even resignations?

Since 1964, the Democratic Party has served as the political home of the major rights revolutions — civil and voting rights for racial and ethnic minorities, criminal defendants’ rights, women’s rights, reproductive rights, gay rights, rights to sexual privacy. Each of these revolutions has changed the moral order and norms of permissible language — including, for example, the substitution of humankind for mankind and the now common usage of Ms.

At the same time, for a longer period, liberal ideology has been the mainstay of support for First Amendment rights and opposition to censorship.

“Today’s massive scale of instability and its capacity to cross borders, vividly demonstrated by the refugee crisis in Europe, makes humanitarian aid a global public good that requires an appropriate fund-raising model,” the report says

Countries that host refugees feel the impact acutely, but do not always have direct access to donor money. And refugees are often prohibited from working in the countries where they are living.

The report urges money transfer agencies to drop their fees, which is a nod to the importance of remittances from migrants to their home countries, especially in times of crisis. The authors of the report also encourage more cash assistance, rather than food, tents and blankets. They cite one 2014 study in which 70 percent of a sample group of Syrian refugees traded “in-kind assistance they received for cash.”

The microtax idea is modeled after a tax on airfare that helped raise about $2 billion between 2006 and 2011, largely for immunization programs worldwide.

De Souza and his collaborators spent a month conducting on-the-ground surveys of 24 of those sites. All of them contained evidence that they had been inhabited: abandoned stone tools and broken ceramics, buried trash heaps, an enriched soil called terra preta that is characteristic of indigenous land management through burning and adding fertilizer. By measuring how much of samples’ radioactive carbon had decayed over the years, the researchers dated wood charcoal found at the sites to the early and mid-1400s.

Others’ research shows that entire regions of the rain forest are dominated by tree species once cultivated for food by indigenous people. And highly planned networks of villages have been identified on either side of the region de Souza studied.

The latest discovery, de Souza said, suggests there was a continuous string of settlements across the entire southern rim of the Amazon basin.

“It seems that it was a mosaic of cultures,” he continued. The villages shared some practices — enriching the soil, cultivating Brazil nut and cocoa trees, encircling their homes with protective ditches — but spoke a diverse array of languages

“The forest is an artifact of modification,” de Souza said. He quickly added: “It has nothing to do with the kind of practice we are seeing nowadays — large-scale, clearing monoculture. These people were combining small-scale agriculture with management of useful tree species. So it was more a sustainable kind of land use.”

Three claims most struck me:One of the right’s consensus positions is that innate differences explain and justify the persistence of traditional gender roles. Another consensus position is that racial outcomes are due to “group differences” that are likely innate. One-hundred percent of the free-speech debate is a proxy for people on the right to covertly say that races and sexes are inherently different without fear of censure.

A third story covered the Fresno State professor criticized for insulting Barbara Bush upon her death. A fourth reported on a Breitbart reporter who was suspended from Twitter for declaring that 100 percent of transgender people are “mental patients.” A fifth notes that the U.K. now ranks embarrassingly low on the Press Freedom Index. A sixth notes that a British man was fined in court for teaching his dog to do a Nazi salute––he says that he did it as a joke in order to annoy his girlfriend. A seventh praised Kanye West for ostensibly winning a victory for free speech. Those are the first articles that I pulled up, not a random sample, but they illustrate that the site’s coverage of free speech includes many controversies that, boiled down, have nothing to do with “the right to say races and sexes are inherently different without fear of censure,” along with some that do.

He concludes his Twitter essay, “The age of Trump is one of racial and gender animus. Trump’s divisiveness and hate have infected every corner of our intellectual landscape, poisoned every discussion.” With his last sentence I concur: “American intellectual life is just one more thing that won’t be healthy again until Trump is gone.”

Given that he started in such a strong position with those blue-collar whites, even after that decline he still holds a formidable level of loyalty among them—particularly men and those over 50 years old.

What’s more, he has established a modest but durable beachhead among African American and Hispanic men, even while confronting overwhelming opposition from women in those demographic groups.

A massive new source of public-opinion research offers fresh insights into the fault lines emerging in Donald Trump’s foundation of support.

Mark Blumenthal, SurveyMonkey’s head of election polling, calculated Trump’s average approval rating over the last year among groups of voters segmented simultaneously by their race, gender, education level, and age.

That extra level of detail, not available in conventional polls because their samples are too small, offers a more precise picture of Trump’s coalition.

The SurveyMonkey results put Trump’s total approval rating for 2017 at 42 percent, with 56 percent disapproving. That’s slightly higher than, but within range of, other major public surveys.

In the 2016 election, exit polls found that Trump’s best group was whites without a four-year college degree; he carried 66 percent of them. But his approval among them in the 2017 SurveyMonkey average slipped to 56 percent. In 2016, whites with at least a four-year college degree gave Trump 48 percent of their votes. But in the 2017 average, just 40 percent approved of Trump’s performance, while a resounding 60 percent disapproved.

Nearly a year into his wildly unorthodox presidency, the survey shows Trump retaining diehard loyalty but hemorrhaging support elsewhere. Just over four in 10 Americans (41%) approve of the job he is doing. A majority (54%) disapprove.

But 84% of Republicans, including more than nine in 10 “strong” Republicans, approve of the job Trump is doing as president. More than seven in 10 white evangelicals approve. Nearly a third of white evangelical Protestants say there is almost nothing Trump could do to lose their approval.

tribal divisions run deep. Negative views of the other party among partisans are nearly identical. A majority of Republicans (52%) say Democratic policies are so misguided they present a threat to the country; 39% believe Democratic policies are misguided but not dangerous.

Democrats hold similarly negative attitudes toward Republicans: most (54%) feel Republicans policies pose a threat to the country while 38% believe they are simply misguided.

More than eight in 10 (84%) Republicans believe Confederate monuments are symbols of southern pride rather than racism, a view shared by only 40% of Democrats.

And eight in 10 (79%) Republicans believe most reporters have a personal or political agenda, compared to only 31% of Democrats.

The latest study confirms some of the worst fears of foreign policy analysts in the US and Europe that Trump’s “America first” approach, combined with his volatile and irascible personality, is weakening cohesion among western democracies in the face of a growing challenge from autocracies in Russia and China, and the rise of illiberal democracies and xenophobic nationalism inside Europe.

In just under half of the world’s countries – 65 out of 134 – US standing collapsed, by 10 percentage points or more. Some of the biggest losses were among Washington’s closest allies in western Europe, Australia and Latin America.

One of the sharpest declines in confidence in US leadership was in the UK, where it dropped by 26 percentage points. A third of Britons questioned in the new poll expressed approval, with 63% voicing disapproval.

more people now disapprove of US leadership than approve. This historic low puts the US’s leadership approval rating on par with China’s and sets a new bar for disapproval.”

Approval of US leadership climbed by 10% or more in only four countries: Belarus, Israel, Macedonia and Liberia. It increased moderately in Russia, the former Soviet states in central Asia and parts of west Africa.

Gallup found that the median of worldwide disapproval of US leadership has hit a new record of 43%, higher than disapproval of Russia (36%), China (30%) or Germany (25%).

The US has fallen below China in the Gallup global poll once before, in the last year of the George W Bush administration in 2008, but both the US and China were significantly more popular then than they are now.

The collapse in support is particularly dramatic in Canada and Latin America, where 49% approved of the Obama administration’s leadership, with 27% disapproval in 2016. After Trump’s first year, the ratings graph has scissored sharply, with only 24% now expressing faith in US leadership – a new low - and 58% disapproving.

The Gallup report said that China, which has overtaken the US as the leading trading partner in parts of Latin America, “may be positioned to take further advantage”. It’s approval rating across the Americas is four percentage points higher than the US, but disapproval is much lower at 35%

it is clear that based on the trajectory of what the world thinks of the US, many of the US alliances and partnerships that the Trump administration considers a ‘great strength’ are potentially at risk.”

the most serious finding was the severe drop in approval for US leadership in the world’s democracies. He said: “Elected leaders care what their publics think about the United States. These numbers will make it harder for those leaders to publicly cooperate with the Trump administration – even when it might be in their interest to do so.”

Lately, it has also become one of the most controversial. The algorithm has been found to be promoting conspiracy theories about the Las Vegas mass shooting and incentivising, through recommendations, a thriving subculture that targets children with disturbing content

One YouTube creator who was banned from making advertising revenues from his strange videos – which featured his children receiving flu shots, removing earwax, and crying over dead pets – told a reporter he had only been responding to the demands of Google’s algorithm. “That’s what got us out there and popular,” he said. “We learned to fuel it and do whatever it took to please the algorithm.”

academics have speculated that YouTube’s algorithms may have been instrumental in fuelling disinformation during the 2016 presidential election. “YouTube is the most overlooked story of 2016,” Zeynep Tufekci, a widely respected sociologist and technology critic, tweeted back in October. “Its search and recommender algorithms are misinformation engines.”

Those are not easy questions to answer. Like all big tech companies, YouTube does not allow us to see the algorithms that shape our lives. They are secret formulas, proprietary software, and only select engineers are entrusted to work on the algorithm

Guillaume Chaslot, a 36-year-old French computer programmer with a PhD in artificial intelligence, was one of those engineers.

The experience led him to conclude that the priorities YouTube gives its algorithms are dangerously skewed.

Chaslot said none of his proposed fixes were taken up by his managers. “There are many ways YouTube can change its algorithms to suppress fake news and improve the quality and diversity of videos people see,” he says. “I tried to change YouTube from the inside but it didn’t work.”

Chaslot explains that the algorithm never stays the same. It is constantly changing the weight it gives to different signals: the viewing patterns of a user, for example, or the length of time a video is watched before someone clicks away.

The engineers he worked with were responsible for continuously experimenting with new formulas that would increase advertising revenues by extending the amount of time people watched videos. “Watch time was the priority,” he recalls. “Everything else was considered a distraction.”

Chaslot was fired by Google in 2013, ostensibly over performance issues. He insists he was let go after agitating for change within the company, using his personal time to team up with like-minded engineers to propose changes that could diversify the content people see.

He was especially worried about the distortions that might result from a simplistic focus on showing people videos they found irresistible, creating filter bubbles, for example, that only show people content that reinforces their existing view of the world.

“YouTube is something that looks like reality, but it is distorted to make you spend more time online,” he tells me when we meet in Berkeley, California. “The recommendation algorithm is not optimising for what is truthful, or balanced, or healthy for democracy.”

YouTube told me that its recommendation system had evolved since Chaslot worked at the company and now “goes beyond optimising for watchtime”.

It did not say why Google, which acquired YouTube in 2006, waited over a decade to make those changes

Chaslot believes such changes are mostly cosmetic, and have failed to fundamentally alter some disturbing biases that have evolved in the algorithm

It finds videos through a word search, selecting a “seed” video to begin with, and recording several layers of videos that YouTube recommends in the “up next” column. It does so with no viewing history, ensuring the videos being detected are YouTube’s generic recommendations, rather than videos personalised to a user. And it repeats the process thousands of times, accumulating layers of data about YouTube recommendations to build up a picture of the algorithm’s preferences.

Each study finds something different, but the research suggests YouTube systematically amplifies videos that are divisive, sensational and conspiratorial.

When his program found a seed video by searching the query “who is Michelle Obama?” and then followed the chain of “up next” suggestions, for example, most of the recommended videos said she “is a man”

He believes one of the most shocking examples was detected by his program in the run-up to the 2016 presidential election. As he observed in a short, largely unnoticed blogpost published after Donald Trump was elected, the impact of YouTube’s recommendation algorithm was not neutral during the presidential race: it was pushing videos that were, in the main, helpful to Trump and damaging to Hillary Clinton.

“It was strange,” he explains to me. “Wherever you started, whether it was from a Trump search or a Clinton search, the recommendation algorithm was much more likely to push you in a pro-Trump direction.”

Trump won the electoral college as a result of 80,000 votes spread across three swing states. There were more than 150 million YouTube users in the US. The videos contained in Chaslot’s database of YouTube-recommended election videos were watched, in total, more than 3bn times before the vote in November 2016.

“Algorithms that shape the content we see can have a lot of impact, particularly on people who have not made up their mind,”

“Gentle, implicit, quiet nudging can over time edge us toward choices we might not have otherwise made.”

But what was most compelling was how often Chaslot’s software detected anti-Clinton conspiracy videos appearing “up next” beside other videos.

I spent weeks watching, sorting and categorising the trove of videos with Erin McCormick, an investigative reporter and expert in database analysis. From the start, we were stunned by how many extreme and conspiratorial videos had been recommended, and the fact that almost all of them appeared to be directed against Clinton.

“This research captured the apparent direction of YouTube’s political ecosystem,” he says. “That has not been done before.”

There were too many videos in the database for us to watch them all, so we focused on 1,000 of the top-recommended videos. We sifted through them one by one to determine whether the content was likely to have benefited Trump or Clinton. Just over a third of the videos were either unrelated to the election or contained content that was broadly neutral or even-handed. Of the remaining 643 videos, 551 were videos favouring Trump, while only only 92 favoured the Clinton campaign.

The sample we had looked at suggested Chaslot’s conclusion was correct: YouTube was six times more likely to recommend videos that aided Trump than his adversary.

The spokesperson added: “Our search and recommendation systems reflect what people search for, the number of videos available, and the videos people choose to watch on YouTube. That’s not a bias towards any particular candidate; that is a reflection of viewer interest.”

YouTube seemed to be saying that its algorithm was a neutral mirror of the desires of the people who use it – if we don’t like what it does, we have ourselves to blame. How does YouTube interpret “viewer interest” – and aren’t “the videos people choose to watch” influenced by what the company shows them?

Offered the choice, we may instinctively click on a video of a dead man in a Japanese forest, or a fake news clip claiming Bill Clinton raped a 13-year-old. But are those in-the-moment impulses really a reflect of the content we want to be fed?

YouTube’s recommendation system has probably figured out that edgy and hateful content is engaging. “This is a bit like an autopilot cafeteria in a school that has figured out children have sweet teeth, and also like fatty and salty foods,” she says. “So you make a line offering such food, automatically loading the next plate as soon as the bag of chips or candy in front of the young person has been consumed.”

Once that gets normalised, however, what is fractionally more edgy or bizarre becomes, Tufekci says, novel and interesting. “So the food gets higher and higher in sugar, fat and salt – natural human cravings – while the videos recommended and auto-played by YouTube get more and more bizarre or hateful.”

“This is important research because it seems to be the first systematic look into how YouTube may have been manipulated,” he says, raising the possibility that the algorithm was gamed as part of the same propaganda campaigns that flourished on Twitter and Facebook.

“We believe that the activity we found was limited because of various safeguards that we had in place in advance of the 2016 election, and the fact that Google’s products didn’t lend themselves to the kind of micro-targeting or viral dissemination that these actors seemed to prefer.”

Senator Mark Warner, the ranking Democrat on the intelligence committee, later wrote to the company about the algorithm, which he said seemed “particularly susceptible to foreign influence”. The senator demanded to know what the company was specifically doing to prevent a “malign incursion” of YouTube’s recommendation system. Walker, in his written reply, offered few specifics

Tristan Harris, a former Google insider turned tech whistleblower, likes to describe Facebook as a “living, breathing crime scene for what happened in the 2016 election” that federal investigators have no access to. The same might be said of YouTube. About half the videos Chaslot’s program detected being recommended during the election have now vanished from YouTube – many of them taken down by their creators. Chaslot has always thought this suspicious. These were videos with titles such as “Must Watch!! Hillary Clinton tried to ban this video”, watched millions of times before they disappeared. “Why would someone take down a video that has been viewed millions of times?” he asks

I shared the entire database of 8,000 YouTube-recommended videos with John Kelly, the chief executive of the commercial analytics firm Graphika, which has been tracking political disinformation campaigns. He ran the list against his own database of Twitter accounts active during the election, and concluded many of the videos appeared to have been pushed by networks of Twitter sock puppets and bots controlled by pro-Trump digital consultants with “a presumably unsolicited assist” from Russia.

“I don’t have smoking-gun proof of who logged in to control those accounts,” he says. “But judging from the history of what we’ve seen those accounts doing before, and the characteristics of how they tweet and interconnect, they are assembled and controlled by someone – someone whose job was to elect Trump.”

After the Senate’s correspondence with Google over possible Russian interference with YouTube’s recommendation algorithm was made public last week, YouTube sent me a new statement. It emphasised changes it made in 2017 to discourage the recommendation system from promoting some types of problematic content. “We appreciate the Guardian’s work to shine a spotlight on this challenging issue,” it added. “We know there is more to do here and we’re looking forward to making more announcements in the months ahead.”

In the months leading up to the election, the Next News Network turned into a factory of anti-Clinton news and opinion, producing dozens of videos a day and reaching an audience comparable to that of MSNBC’s YouTube channel. Chaslot’s research indicated Franchi’s success could largely be credited to YouTube’s algorithms, which consistently amplified his videos to be played “up next”. YouTube had sharply dismissed Chaslot’s research.

I contacted Franchi to see who was right. He sent me screen grabs of the private data given to people who upload YouTube videos, including a breakdown of how their audiences found their clips. The largest source of traffic to the Bill Clinton rape video, which was viewed 2.4m times in the month leading up to the election, was YouTube recommendations.

The same was true of all but one of the videos Franchi sent me data for. A typical example was a Next News Network video entitled “WHOA! HILLARY THINKS CAMERA’S OFF… SENDS SHOCK MESSAGE TO TRUMP” in which Franchi, pointing to a tiny movement of Clinton’s lips during a TV debate, claims she says “fuck you” to her presidential rival. The data Franchi shared revealed in the month leading up to the election, 73% of the traffic to the video – amounting to 1.2m of its views – was due to YouTube recommendations. External traffic accounted for only 3% of the views.

many of the other creators of anti-Clinton videos I spoke to were amateur sleuths or part-time conspiracy theorists. Typically, they might receive a few hundred views on their videos, so they were shocked when their anti-Clinton videos started to receive millions of views, as if they were being pushed by an invisible force.

In every case, the largest source of traffic – the invisible force – came from the clips appearing in the “up next” column. William Ramsey, an occult investigator from southern California who made “Irrefutable Proof: Hillary Clinton Has a Seizure Disorder!”, shared screen grabs that showed the recommendation algorithm pushed his video even after YouTube had emailed him to say it violated its guidelines. Ramsey’s data showed the video was watched 2.4m times by US-based users before election day. “For a nobody like me, that’s a lot,” he says. “Enough to sway the election, right?”

Daniel Alexander Cannon, a conspiracy theorist from South Carolina, tells me: “Every video I put out about the Clintons, YouTube would push it through the roof.” His best-performing clip was a video titled “Hillary and Bill Clinton ‘The 10 Photos You Must See’”, essentially a slideshow of appalling (and seemingly doctored) images of the Clintons with voiceover in which Cannon speculates on their health. It has been seen 3.7m times on YouTube, and 2.9m of those views, Cannon said, came from “up next” recommendations.

his research also does something more important: revealing how thoroughly our lives are now mediated by artificial intelligence.

Less than a generation ago, the way voters viewed their politicians was largely shaped by tens of thousands of newspaper editors, journalists and TV executives. Today, the invisible codes behind the big technology platforms have become the new kingmakers.

They pluck from obscurity people like Dave Todeschini, a retired IBM engineer who, “let off steam” during the election by recording himself opining on Clinton’s supposed involvement in paedophilia, child sacrifice and cannibalism. “It was crazy, it was nuts,” he said of the avalanche of traffic to his YouTube channel, which by election day had more than 2m views

As compared to others in the region, children living in areas sprayed with Agent Orange have been found to suffer three times as many cleft palates, three times as much mental retardation, are three times as likely to have extra fingers or toes and eight times as likely to experience massive abdominal and inguinal hernias.

Children born to Vietnam veterans are more prone to birth defects relating to the nervous system, kidneys and oral clefts. Sudden Infant Death Syndrome is 400% more likely to occur in infants born to the men and women who served in Vietnam.

In the forty years since the end of the Vietnam War, an estimated 10,000 Lao people, including thousands of children, have died. 

Someday perhaps, the way we look at war in our society will change. Someday perhaps, an informed and contemplative American citizenry will demand of its leaders full consideration of the true cost of armed conflict before permitting them to squander our most precious resource – our brave young men and women in service to America.

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,

Though scientists weren’t allowed to take samples from the skull, they noted in the study, its shape seemed “totally comparable” to radiographies of Hitler’s skull taken a year before his death.

The analysis corroborated frequently-cited claims that Hitler was a vegetarian, but could not conclusively prove whether he took cyanide before the gunshot. Bluish deposits on his false teeth, the researchers wrote, suggest a variety of different hypotheses—did some chemical reaction take place between his fake teeth and the cyanide at the moment of death, during his cremation, or while the remains were buried?