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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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Downed Planes Raise New Perils for Trump as Tehran Hunts for Missing US Pilot
Traces of an Iranian missile attack in Tehran’s sky, amid the U.S.-Israeli conflict with Iran, in Tehran, Iran, April 3, 2026. Photo: Majid Asgaripour/WANA (West Asia News Agency) via REUTERS
Two US warplanes were downed over Iran and the Gulf, Iranian and US officials said on Friday, with two pilots rescued and a third still missing and being hunted by Tehran’s forces.
The incidents show the risks still faced by US and Israeli aircraft over Iran despite assertions from US President Donald Trump and his Defense Secretary Pete Hegseth that their forces had total control of the skies.
The first plane, a two-seat US F-15E jet, was shot down by Iranian fire, officials in both countries said.
The second plane, an A-10 Warthog fighter aircraft, was hit by Iranian fire and crashed over Kuwait, with the pilot ejecting, two US officials said.
Two Blackhawk helicopters involved in the search effort for the missing pilot were hit by Iranian fire but made it out of Iranian airspace, the two US officials told Reuters.
The degree of injuries among the crew of the aircraft remained unclear. The status and whereabouts of the missing F-15E crew member was not publicly known.
Iran’s Revolutionary Guard Corps said it was combing an area near where the pilot’s plane came down in southwestern Iran and the regional governor promised a commendation for anyone who captured or killed “forces of the hostile enemy.”
Iranians, who have been pummeled by American air power for weeks, posted gleeful messages celebrating the plane downings. Iran’s Parliament Speaker Mohammad Baqer Qalibaf said on X that the U.S. and Israel’s war had been “downgraded from regime change” to a hunt for their pilots.
Trump has been in the White House receiving updates on the search-and-rescue operation, a senior administration official told Reuters. The Pentagon and US Central Command did not immediately respond to requests for comment.
NO SIGN OF END TO WAR
The prospect of a US service person being alive and on the run inside Iran raises the stakes for Washington in a conflict with low public support and no sign of an imminent end.
Iran has officially told mediators it is not prepared to meet with US officials in Islamabad in coming days and that efforts to produce a ceasefire, led by Pakistan, have reached a dead end, the Wall Street Journal reported on Friday.
The US and Israel opened the campaign with a wave of strikes that killed Iran’s Supreme Leader Ayatollah Ali Khamenei on February 28. The war has killed thousands and threatened lasting damage to the global economy.
So far, 13 US military service members have been killed in the conflict and more than 300 have been wounded, according to the US Central Command.
Iran has rained down drones and missiles on Israel. It has also taken aim at Gulf countries allied to the US, which have so far held back from joining the war directly for fear of further escalation.
In a security alert on Friday, the US embassy in Beirut said Iran and its aligned armed groups may target universities in Lebanon and urged US citizens in the country to leave while commercial flights are still available.
Israel has been waging a parallel campaign against Iran-backed Hezbollah in Lebanon after the militant group fired at Israel in support of Iran.
TRUMP THREAT TO STRIKE BRIDGES, POWER PLANTS
On Friday, as Trump threatened to hit its bridges and power plants, Iran struck a power and water plant in Kuwait, underlining the vulnerability of Gulf states that rely heavily on desalination plants for drinking water.
On Thursday, Trump posted footage on social media showing dust and smoke billowing up as US strikes hit the newly constructed B1 bridge between Tehran and nearby Karaj, which was due to open this year, and said more attacks would follow.
“Our Military, the greatest and most powerful (by far!) anywhere in the World, hasn’t even started destroying what’s left in Iran. Bridges next, then Electric Power Plants!” he wrote in a subsequent post.
On Friday, a drone hit a Red Crescent relief warehouse in the Choghadak area of Iran’s southern Bushehr province.
Kuwait Petroleum Corporation said its Mina al-Ahmadi refinery had been hit by drones. Other attacks were also reported to have been intercepted in Saudi Arabia and Abu Dhabi. Missile debris landed near the Israeli port of Haifa, site of a major oil refinery.
Oil markets were closed after benchmark U.S. crude prices gained 11% on Thursday following a speech by Trump that offered no clear sign of an imminent end to the war.
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US-Iran: Diplomatic Push Falters as Qatar Steps Back and Pakistan Talks Stall
Qatari Prime Minister and Foreign Minister Sheikh Mohammed bin Abdulrahman Al Thani speaks after a meeting with the Lebanese president at the presidential palace in Baabda, Lebanon, Feb. 4, 2025. Photo: REUTERS/Emilie Madi
i24 News – Diplomatic efforts to secure a ceasefire between Washington and Tehran appear to have reached an impasse, as key regional mediators pull back and broader talks stall.
According to reporting by The Wall Street Journal, Qatar has informed US officials that it does not wish to take a central role in mediating between the two sides. Officials familiar with the matter said Doha has made clear it is “not willing” to lead negotiations or act as the primary broker.
At the same time, Pakistan-led efforts to bring Iranian and American officials together have also stalled. Mediators say Tehran has refused to attend proposed meetings in Islamabad, calling Washington’s conditions “unacceptable,” further underscoring the widening gap between the two sides and the growing difficulty of restarting dialogue.
Despite the deadlock, diplomatic channels have not fully closed. Turkey and Egypt are continuing parallel efforts to revive talks, with discussions underway about potential alternative venues, including Doha and Istanbul.
US President Donald Trump downplayed the impact of recent military developments on diplomacy, including the destruction of a US fighter jet during operations in Iran. Speaking in a brief exchange with an NBC News journalist, he said: “No, not at all. It’s war. We are at war.”
He further fueled speculation with a cryptic social media post on Truth Social, writing: “Keep the oil, anyone?” criticising international allies on Friday over rising fuel prices. Trump appeared to mock allies such as the United Kingdom, writing that they should “keep the oil.”
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Report: Iran Retains Significant Missile Capability Despite Weeks of US-Led Strikes
Iranian missiles are displayed in a park in Tehran, Iran, Jan. 31, 2026. Photo: Majid Asgaripour/WANA (West Asia News Agency) via REUTERS
i24 News – Despite weeks of sustained airstrikes by the United States and its allies, Iran has reportedly managed to retain a substantial portion of its military capabilities, particularly its ballistic missile arsenal.
According to a report by The New York Times citing US intelligence assessments, Tehran has developed methods to mitigate the impact of the strikes, allowing it to preserve and restore key parts of its missile infrastructure.
While the Pentagon has claimed responsibility for striking more than 11,000 targets over five weeks and reducing the rate of Iranian missile fire, intelligence officials now caution that the actual damage may be more limited than initially assessed. Iranian forces are reportedly able to rapidly repair or reactivate missile launchers stored in heavily fortified or underground facilities, sometimes within hours of being hit.
Analysts also point to the widespread use of decoy sites, which may have drawn strikes away from operational assets. Many of the targeted locations are believed to have contained dummy installations, complicating efforts to accurately gauge the degradation of Iran’s ballistic capabilities. Combined with deep underground bunkers and dispersed storage networks, this approach is seen as enabling Tehran to maintain a higher level of readiness than publicly estimated.
US intelligence officials assess that this resilience reflects a deliberate strategy: preserving a credible long-range strike capability as both a deterrent and a bargaining tool in any future negotiations, while ensuring regime survival and continued regional influence.
Despite sustained air dominance claimed by Washington and its allies, Iran’s adaptive tactics continue to complicate battlefield assessments, leaving the true balance of power in the conflict uncertain.