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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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NATO Should Launch Operation to Boost Security in Arctic, Belgian Minister says
Belgian Defence Minister Theo Francken speaks to journalists as he arrives to an informal meeting of European Union defence ministers in Copenhagen, Denmark, August 29, 2025. Photo: REUTERS/Tom Little
NATO should launch an operation in the Arctic to address US security concerns, Belgium’s defense minister told Reuters on Sunday, urging transatlantic unity amid growing European unease about US President Donald Trump’s push to take control of Greenland.
“We have to collaborate, work together and show strength and unity,” Theo Francken said in a phone interview, adding that there is a need for “a NATO operation in the high north.”
Trump said on Friday that the US needs to own Greenland to prevent Russia or China from occupying it in the future.
European officials have been discussing ways to ease US concerns about security around Greenland, an autonomous territory of the Kingdom of Denmark.
Francken suggested NATO’s Baltic Sentry and Eastern Sentry operations, which combine forces from different countries with drones, sensors and other technology to monitor land and sea, as possible models for an “Arctic Sentry.”
He acknowledged Greenland‘s strategic importance but said “I think that we need to sort this out like friends and allies, like we always do.”
A NATO spokesperson said on Friday that alliance chief Mark Rutte spoke with US Secretary of State Marco Rubio about the importance of the Arctic for shared security and how NATO is working to enhance its capabilities in the high north.
Denmark and Greenland‘s leaders have said that the Arctic island could not be annexed and international security did not justify such a move.
The US already has a military presence on the island under a 1951 agreement.
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IDF Strikes Hezbollah Weapons Sites in Lebanon After Army Denied Its Existence
Israeli strikes targeting Hezbollah’s terror infrastructure. Photo: Via i23, Photo from social media used in accordance with Clause 27a of the Copyright Law.
i24 News – The Israel Defense Forces carried out airstrikes on a site in southern Lebanon that the Lebanese Army had previously declared free of Hezbollah activity, Israeli officials said on Sunday, citing fresh intelligence that contradicted Beirut’s assessment.
According to Israeli sources, the targeted location in the Kfar Hatta area contained significant Hezbollah weapons infrastructure, despite earlier inspections by the Lebanese Armed Forces (LAF) that concluded no military installations were present.
Lebanese officials had conveyed those findings to international monitoring mechanisms, and similar claims were reported in the Lebanese newspaper Al-Akhbar.
Israeli intelligence assessments, however, determined that Hezbollah continued to operate from the site.
During a second wave of strikes carried out Sunday, the IDF attacked and destroyed the location.
Video footage released afterward showed secondary explosions, which Israeli officials said were consistent with stored weapons or munitions at the site.
The IDF stated that the strike was conducted in response to what it described as Hezbollah’s ongoing violations of ceasefire understandings between Israel and Lebanon. Military officials said the targeted structure included underground facilities used for weapons storage.
According to the IDF, the same site had been struck roughly a week earlier after Israel alerted the Lebanese Army to what it described as active terrorist infrastructure in the area. While the LAF conducted an inspection following the warning, Israeli officials said the weapons facilities were not fully dismantled, prompting Sunday’s follow-up strike.
The IDF said it took measures ahead of the attack to reduce the risk to civilians, including issuing advance warnings to residents in the surrounding area.
“Hezbollah’s activity at these sites constitutes a clear violation of the understandings between Israel and Lebanon and poses a direct threat to the State of Israel,” the military said in a statement.
Israeli officials emphasized that operations against Hezbollah infrastructure would continue as long as such threats persist, underscoring that Israel retains the right to act independently based on its own intelligence assessments.
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Some US Senators Skeptical About Military Options for Iran
Demonstrators and activists rally in support of nationwide protests in Iran, outside the White House in Washington, D.C., U.S., January 10, 2026. REUTERS/Tom Brenner
Some US lawmakers in both major parties on Sunday questioned whether military action against Iran is the best approach for the United States as Iranian authorities face growing turmoil.
US President Donald Trump in recent days has left open the possibility of American intervention in Iran, where the biggest anti-government protests in years have led to the Revolutionary Guards blaming unrest on terrorists and vowing to safeguard the governing system.
But at least two US senators sounded notes of caution during interviews on TV networks’ Sunday morning programs.
“I don’t know that bombing Iran will have the effect that is intended,” Republican Senator Rand Paul said on ABC News’ “This Week” show.
Rather than undermining the regime, a military attack on Iran could rally the people against an outside enemy, Paul and Democratic Senator Mark Warner said.
Warner, appearing on “Fox News Sunday,” warned that a military strike against Iran could risk uniting Iranians against the United States “in a way that the regime has not been able to.” History shows the dangers of US intervention, said Warner, who argued that the US-backed 1953 overthrow of Iran’s government set in motion a chain of events that gradually led to the rise of the country’s Islamic regime in the late 1970s.
The Wall Street Journal on Sunday reported that US military and diplomatic officials will brief Trump on Tuesday about options for Iran, including cyberattacks and potential military action.
Iran has said it will target US military bases if the United States launches an attack. But Republican Senator Lindsey Graham, who has often touted a muscular approach to foreign policy, said Trump “needs to embolden the protesters and scare the hell out of the [Iranian] regime.”
“If I were you, Mr. President, I would kill the leadership that are killing the people,” Graham said on Fox News’ “Sunday Morning Futures” show. “You’ve got to end this.”
Reza Pahlavi, the US-based son of the Iranian shah who was ousted in 1979, said on Sunday he is prepared to return to Iran to lead a shift to a democratic government.
“I’m already planning on that,” Pahlavi said on “Sunday Morning Futures.” “My job is to lead this transition to make sure that no stone is left unturned, that in full transparency, people have an opportunity to elect their leaders freely and to decide their own future.”