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A German town built a granary atop its Jewish cemetery. Now the bones are yielding insights about Ashkenazi DNA.
BERLIN (JTA) – The city of Erfurt in central Germany is home to an impeccably restored medieval synagogue made possible because local Jews had been expelled long before the Nazis began their campaign to destroy Jewish sites.
Now, Erfurt’s long-hidden Jewish past is again offering new insights — this time about the genetic history of Ashkenazi Jews.
Human remains from a medieval Jewish cemetery in Erfurt have allowed what researchers say is the largest ancient Jewish DNA study to date. Conducted without disinterring any remains, in keeping with Jewish law, the study published Wednesday in the scientific journal Cell found that Erfurt’s medieval Jewish community was more genetically diverse than their modern-day cousins, and carried many of the same Jewish genetic diseases — such as Tay Sachs and cystic fibrosis — that affect Ashkenazi Jews today.
“There have been many previous DNA studies, but not of Jews,” said geneticist Shai Carmi, a professor at the Hebrew University of Jerusalem, whose search for study material led him to an archaeological dig at the Jewish cemetery in Erfurt. He and his collaborators were able to analyze DNA of 33 individuals who died between 1270 and 1400, using teeth they found there.
The study follows a similar analysis revealed in August by researchers in England, who studied the DNA from skeletons found at the bottom of a medieval well and concluded that the remains were likely of victims of an antisemitic massacre in 1190. Analysis of six individuals prior to their identification as Jewish revealed that Ashkenazi Jews developed a unique genetic variation centuries earlier than realized.
The Erfurt analysis also includes samples from before the epidemic of Black Death that was until recently understood to have created the genetic “bottleneck” that created the genetic markers common among Ashkenazi Jews today.
Erfurt’s Jewish settlement existed from the 11th to 15th century, with a brief gap following a 1349 massacre perpetrated after the Jews were falsely blamed for causing the bubonic plague. Surviving Jews returned there, but after all Jews were expelled once and for all in 1454, the city built a granary on top of the Jewish cemetery.
Karin Sczech participates in the excavation at the medieval Jewish cemetery of Erfurt. (Courtesy of TLDA Ronny Krause)
In 2013, the city approved the repurposing of the unused granary into a parking lot. Because it was an historic site, a rescue excavation was initiated, overseen for the State of Thuringia by German archaeologist Karin Sczech.
Meanwhile, Carmi had been looking for Jewish cemeteries anywhere in the world “where we could analyze remains already excavated,” he told JTA in a telephone interview from Jerusalem. “I consulted historians and eventually reached the archeologist in Erfurt.” Fortunately, he said, “they still hadn’t reburied the remains.”
He approached Sczech, who later became a co-author of the new study. In 2018, with a supportive judgment from Rabbi Ze’ev Litke — an Israeli expert on genetics and Jewish law — and permission from Erfurt’s then-rabbi, Benjamin Kochan, work began to extract and analyze DNA from detached teeth found in the graves. (About 500 Jews live in Erfurt today, most of them having migrated from the former Soviet Union since 1990.)
American geneticist David Reich picked up the teeth and brought them back to the department of human evolutionary biology at Harvard University in Cambridge, Massachusetts, where drilling and DNA extraction took place.
While the skeletons were reburied, the teeth are still stored at the research institutes where they have been analyzed, in case scientists need to retest to verify the result.
The project provides an ethical basis for studies of ancient Jewish DNA, Carmi said. “Of course we couldn’t just go to a cemetery and dig and take out skeletons; this would be prohibited,” he said, referring to Jewish law prohibiting the removal of bones from where someone was buried.
But Litke opined that the study could be done, because the bones already had been disturbed for an unrelated reason. “He recommended using teeth, as the analysis does almost no damage,” Carmi said.
There are many motivations to study Jewish DNA: One can find lost relatives going back a few generations, and answer questions about Jewish origin of partners intending to marry. But the goal of Carmi’s team was “to fill the gaps in our understanding of Ashkenazi Jewish early history.”
There are several non-destructive ways to obtain DNA from human remains, said Carmi, who also works as a consultant to an Israeli firm that helps clients trace their genetic roots.
“You can take an almost microscopic slice of bone and extract DNA in a solution, or put the entire bone in a solution and extract the DNA without drilling, without disturbing the dead. This opens the way to doing studies even without teeth,” he added.
His team found that the Erfurt community appeared to fit into two genetically distinct groups, descending either from Middle Eastern or European populations. This genetic variability no longer exists, Carmi said.
At the same time, Carmi said, the analysis found remarkable continuity in the local community, as well. “One third of the Erfurt individuals descended from one woman through their maternal lines,” he said, adding that evidence suggested that she lived between 1,000 and 2,000 years ago.
In a press statement, geneticist Reich of Harvard said the work “also provides a template for how a co-analysis of modern and ancient DNA data can shed light on the past. Studies like this hold great promise not only for understanding Jewish history, but also that of any population.”
The research team, with more than 30 scientists, included Hebrew University’s Shamam Waldman, a doctoral student in Carmi’s group, who performed most of the data analysis.
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The Forverts is on vacation. Here’s how to access our content while we’re away.
From Thursday, Aug. 13, till Friday, Aug. 21, the Forverts will be on vacation.
During this time, you can continue to read our English-language articles here; our Yiddish articles here and our Tidbits column of easy-to-read Yiddish news briefs accompanied by audio here. You can also play Vertl (Yiddish Wordle) or view one of our many videos by clicking on one of the following:
- YIDDISH WORD OF THE DAY: Check out our playlist of Yiddish Word of the Day here.
- OUR COOKING SHOWS: Watch a variety of cooks make all sorts of recipes in Yiddish with English subtitles, including Rukhl Schaechter, Eve Jochnowitz, Sender Glasser, Gitl Schaechter Viswanath and Roza Jaffe here.
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Israel’s enemies say it is anti-Christian. Jewish extremists are helping them make the case
One of the more damaging charges against Israel now circulating in the United States portrays the Jewish state as increasingly hostile to Christianity and Christians. The accusation has acquired considerable prominence in American media, where stories about attacks on clergy, harassment of worshippers, restrictions around Christian holy sites and violence against Christian communities have accumulated into a broader portrait of a country becoming inhospitable to one of the faiths born in the Holy Land.
The Washington Post recently devoted a major article to attacks on Christians in Israel and the government’s lackluster response, while other reporting has focused on Jews spitting at Christian clergy and pilgrims in Jerusalem, vandalism of Christian property and the April assault on a Roman Catholic nun near the Old City.
The nun’s case was particularly appalling: according to the subsequent indictment, a Jewish Israeli man chased the 48-year-old French Catholic sister, pushed her to the ground and kicked her after identifying her as a Christian nun. Israeli police arrested the suspect and prosecutors charged him with an assault motivated by religious hostility.
The Armenian Christians of Jerusalem have become another symbol of the phenomenon. Their community predates almost every modern political dispute over the city, with a continuous presence stretching back some 1,700 years. Yet Armenian clergy and residents have described repeated episodes of spitting, intimidation and abuse.
Israeli media in recent weeks described Israeli teenagers arriving at the headquarters of the Armenian Apostolic Church in the Old City and asking whether Christians were inside because they wanted to spit at them.
Scenes like these travel instantly around the world and provide ready-made material for anyone seeking to portray Israel as a place where Christians are despised. In fact, Israel’s Jewish extremists have no particular beef with Christians – but rather a conflict with, and often a hatred for, Arabs in general, of any religion.
Overall, the incidents are not representative of Christian life inside Israel. About 200,000 Christian citizens lived in the country at the end of 2025, most of them Arab Christians, and the community has continued to grow. Arab Christians have exceptionally high educational attainment and are disproportionately represented in Israeli higher education. Christians serve as judges, diplomats, doctors, academics and public officials, and their churches and institutions form a recognized part of Israeli public life. Moreover, the assault on the Catholic nun produced an arrest and indictment rather than tacit approval, and Israeli authorities regularly proclaim their commitment to Christian worship and the protection of Christian holy places.
Yet a radical Jewish fringe appears determined to furnish Israel’s enemies with the pictures, anecdotes and headlines required to transform an inflammatory accusation into a plausible story. The latest damaging example comes from Taybeh, the last predominantly Christian Palestinian village in the West Bank (and home to its only beer brewery).
Taybeh has endured months of tension and violence. In June, Israeli settlers obstructed Palestinians attempting to extinguish a large fire near the village, according to Palestinian firefighters and a local priest. Residents have complained of arson, vandalism, incursions onto private property and intimidation.
“The settlers can do whatever enters their heads,” said the Rev. Jack Abed of Taybeh’s Greek Orthodox community. “And every now and then we have rioting from settler youth who come into the village. They bring sheep with them to graze in our fields.”
This week the Israeli military responded by closing the village to Israelis, saying the measure followed violent attacks by Israelis in the area and was intended to protect local residents and maintain order.
The order illustrates two realities at once. The Israeli army is using military power to protect a Palestinian Christian community from Israeli Jewish extremists. This tells a very different story from the sweeping claim that the Israeli state has embarked upon a campaign against Christians. At the same time, the necessity of such a measure shows the extent of the problem Israel has permitted to develop.
Indeed, Israel Radio this week reported that there have been 660 cases of “nationalistic crime” by Jews in the West Bank in the first six months of 2026 – a 50 percent increase over the same period last year. The report, citing military sources, said six Palestinians were killed and 140 injured in these attacks. There are rarely long-term arrests and no settlers have been convicted in the deaths.
I recently wrote in these pages about Jewish terrorists in the West Bank after extremists torched two mosques, burned cars and fields and attacked Palestinian motorists. One mosque in Qusra was burned and covered with revenge graffiti; another in Kur was set ablaze.
The violence belongs to a larger pattern of attacks on civilians, destruction of property and vigilante incursions into Palestinian communities. I described this as both a moral failure and a national-security disaster because every such episode creates another security problem for the Israeli soldiers and police who must contain the consequences, while simultaneously providing Hamas, Iran and Israel’s other enemies with propaganda more effective than much of what they could manufacture themselves.
The Christian dimension makes the strategic stupidity even more breathtaking. Israel depends upon deep reservoirs of sympathy among Christians around the world, especially in the United States, where tens of millions of evangelical Christians have provided some of the most consistent political support for the Jewish state. Christian attachment to Israel also extends far beyond evangelical politics to people who regard the survival of ancient Christian communities and access to the holy places of Jerusalem, Bethlehem and the Galilee as matters of profound spiritual importance.
Every video of an extremist spitting at a priest, every report of an Armenian Christian being harassed and every attack on a Christian Palestinian village chips away at that reservoir of goodwill. These extremists are weakening Israel’s security, staining Judaism and turning potential friends of Israel into skeptics and existing skeptics into enemies.
The military’s action in Taybeh is therefore welcome, and it is also woefully insufficient. Israel’s Oct. 27 election offers the possibility of a different approach. Should Netanyahu be defenestrated and a new government take office, a comprehensive crackdown on Jewish terrorism in the West Bank should rank among its first priorities. The task requires arrests, prosecutions and enforcement rather than declarations of concern after each fresh outrage.
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A Democratic upset in Connecticut — but Israel was not a factor
(JTA) — Luke Bronin scored a decisive victory over longtime Rep. John Larson in Connecticut’s Democratic primary Tuesday, marking another defeat for AIPAC which had backed the 14-term congressman.
The pro-Israel lobby group is increasingly viewed as politically toxic in Democratic primaries across the country, with several progressive candidates notching victories after making opposition to the group a centerpiece of their campaigns.
Israel and the American Israel Public Affairs Committee, however, were not at the forefront of the contest in Connecticut’s 1st Congressional District, reflecting a more nuanced picture regarding Democratic voters’ shifting sentiments toward Israel.
Bronin and Larson, the race’s two candidates with more traditionally pro-Israel positions, together won nearly 90% of the vote, with Bronin receiving 53% while Larson received 34%. The two progressive candidates in the race, Jillian Gilchrest and Ruth Fortune, who both accused Israel of genocide in Gaza, finished a distant third and fourth.
Bronin, 46, who has Jewish ancestry on his father’s side, is the former mayor of Hartford and also served in the Obama Administration as the Deputy Assistant Secretary for Terrorist Financing and Financial Crimes. His campaign largely centered on affordability and emphasizing the need for new leadership in the Democratic party.
“If we are going to fix this mess that we are in, we need to build a Democratic Party that is bringing a whole new energy to this fight,” Bronin told supporters following his victory.
Israel was not entirely absent from the campaign. Larson, who first took office in 1999, split with Bronin during a primary debate last month when Larson defended his recent vote in support of U.S. military aid to Israel.
“Yes, I voted in favor of making sure that Israel, our ally, is going to get the aid from the United States that it needs. But the Palestinians need humanitarian aid, and Donald Trump has got to enforce the law,” Larson said.
Bronin pushed back at Larson, replying, “Trusting Donald Trump to do the right thing is a mind-blowing example of putting hope over all of the evidence in front of us.”
While Larson had long supported Israel during his tenure in Congress, he has been critical of Israel’s prosecution of the war in Gaza and treatment of Palestinians and vocally opposed the United States’ war in Iran.
Bronin, meanwhile, has said he is against taxpayer money going toward funding offensive military aid to Israel, though he supports “defenses for civilians that protect civilian life against rockets and missiles and drones.”
“I think it’s hugely important that Israel exists as a safe, secure homeland for the Jewish people,” Bronin said when asked about his views on Israel on The Lisa Wexler Show in May. He also spoke out against Prime Minister Benjamin Netanyahu, explaining that the premier had “done enormous damage to Israel’s security, Israel’s standing in the world,” adding that “we have an obligation as a country to say what’s happening is not okay.”
Bronin slightly outraised Larson on the campaign trail, receiving roughly $3.1 million largely from individual donations from billionaires and large firms, while Larson received $2.7 million and relied more on donations from PACs, according to the Federal Election Commission.
Larson received roughly $120,000 in AIPAC-linked donations during the campaign cycle, according to the campaign finance database Open Secrets.
Bronin will now face Republican Amy Chai, a physician and mental health advocate, in the general election for the state’s first congressional district. The district, which spans Bristol, Hartford and Torrington, is home to 27,800 Jews, representing 3.9% of the total population, according to the Berman Jewish Data Bank.
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