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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.


The post A German town built a granary atop its Jewish cemetery. Now the bones are yielding insights about Ashkenazi DNA. appeared first on Jewish Telegraphic Agency.

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Report: Khamenei Moved to Underground Bunker in Tehran

Iran’s Supreme Leader Ayatollah Ali Khamenei speaks in a televised message, after the ceasefire between Iran and Israel, in Tehran, Iran, June 26, 2025. Photo: Office of the Iranian Supreme Leader/WANA (West Asia News Agency)/Handout via REUTERS

i24 NewsAmid tense expectation of US strike on key assets of the Islamic regime, Iran’s Supreme Leader Ali Khamenei was moved into a special underground bunker in Tehran, the Iran International website reported on Saturday.

The report further added that the supreme leader’s third son Masoud Khamenei has taken over day-to-day management of the leader’s office, functioning as the de facto main channel for coordination vis-à-vis the executive branches of the government and the security forces.

The report describes Khamenei’s hideout as a “fortified site with interconnected tunnels.”

On Thursday US President Donald Trump said that a “massive” naval force was heading toward Iran.

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Israel, Syria to Finalize US-Brokered Security Deal ‘Soon,’ as ‘Developments Accelerate Noticeably’

Syria’s interim President Ahmed al-Sharaa speaks during a Ministerial formation of the government of the Syrian Arab Republic, in Damascus, Syria, March 29, 2025. Photo: REUTERS/Khalil Ashawi

i24 NewsSyrian and Israeli officials are expected to meet soon under US mediation, perhaps in Paris, to finalize a security agreement between Damascus and Jerusalem, a source close to Syrian President Ahmed al-Sharaa told i24NEWS on Saturday.

According to the Syrian source, the talks will also focus on various potential joint strategic and economic projects in the buffer zones between the two countries.

“There is very optimistic talk suggesting the possibility of even opening an Israeli embassy in Damascus before the end of this year, given the significant progress in the prospect of Syria joining the Abraham Accords,” the source said.

The original Syrian plan was limited to a security agreement and the opening of an Israeli liaison office in Damascus without diplomatic status, the source tells me. “But developments are accelerating noticeably under pressure from the United States, and specifically by President Trump, and amid growing Syrian openness.”

If Damascus manages to reach an integration agreement with the Druze in southern Syria, similar to its agreement with the Kurds in the northeast, and Israel commits to respecting Syria’s unity and territorial integrity, then al-Sharaa would be open to elevate the status of the agreement with Israel to more than just a security agreement, to also include diplomatic relations and an Israeli embassy in Damascus.

“The al-Sharaa government believes that a viable compromise to advance a peace process with Israel would include a 25-year lease for the Golan Heights, similar to the one Jordan previously signed with Israel over the border enclaves, turning it into a ‘Garden of Peace” of joint economic ventures,” the source said.

The source close to al-Sharaa also tells me that US President Trump is seeking to bring Israeli Prime Minister Netanyahu and President Al-Sharaa together for a peace agreement signing ceremony.

It should be noted that Israel has repeatedly rejected returning any part of the Golan Heights, let alone the entire territory.

On another front, the source stated that Damascus intends to adopt a new local administration system based on expanded administrative decentralization to enhance participation in local communities across all Syrian governorates.

According to the source, this solution would resolve persisting disputes with the Druze, Kurds, Alawites, and other minorities. A new Syrian government is expected to be formed within the next three months, the source added.

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What will become of the Dutch farm school that saved my father from the Nazis?

In North Holland, a grand community house rises above neighboring farms. Built in 1936 by students of Werkdorp Wieringermeer (Werkdorp means “work village”; Wieringermeer was the name of the township), the building held the dining room and classrooms of a Jewish farm school. A stunning example of Amsterdam School architecture, the Werkdorp’s brick and cobalt-blue facade dominates the polder, or land claimed from the sea.

Today, the land grows tulips. Nearby, Slootdorp (“Ditch Village”) honors the canals that carry the water away.

In 1939, the school sheltered 300 German-speaking Jewish students, including this reporter’s father, who arrived, his head shaved, on Jan. 4, from Buchenwald.

A 1936 photo taken of students at the Werkdorp by Willem de Poll. Photo by Willem de Poll/National Archives

Why a Jewish farm school? In the 1930s, most young German and Austrian Jews were city dwellers and had no idea how to milk a cow, raise chickens, or plow land. But as the Nazis barred Jews from education and professions, farm laborers were the immigrants most wanted by the handful of countries accepting Jewish refugees.

Some 30 such training schools were established in Germany, modeled on the hachsharah throughout Europe that taught Jewish youth the skills to settle in what was then Palestine. The Werkdorp, the largest in Holland, was non-Zionist. Its objective was to send young farmers to any country that would take them.

Today, volunteers have assembled a grassroots museum that showcases the Werkdorp’s years, 1934 to 1941. Pinned to the walls inside are pictures taken by the Russian-American photographer Roman Vishniac, who visited in 1938, and by the Dutch photojournalist Willem van de Poll. They show students haying, plowing, feeding chickens, baking bread.

The entry path to the Werkdorp today. Photo by Heidi Landecker

Also on the walls are images of the nearly 200 Werkdorpers who were not as lucky as my father. The Nazi official Klaus Barbie — who became known as the “Butcher of Lyon” for his harsh treatment of resistance fighters there — rounded up the Werkdorpers in 1941 and sent them east to concentration camps, where they were murdered.

A scroll of those victims’ names hangs near the entrance. In the huge kitchen, you can still see the kosher sinks, one tiled red and white for dishes for meat, the other black and white for dairy. Otherwise, the three floors of the great hall stand largely empty.

Protected from demolition by the Netherlands Agency for Cultural Heritage, the community house and its land have been owned since 2008 by Joep Karel who runs a private real estate company that builds housing. Karel pays for the building’s upkeep and opens it to cultural groups and schools.

But the developer has a grander plan. He wants to create a modern memorial center that tells the story of the Werkdorpers and the polder. To fund his venture, he would erect housing behind the community house, to be rented by migrant workers. In April 2020, the council of Hollands Kroon — the Crown of Holland, as the township is called today — approved such housing for 160 workers.

The organizers of the museum are uncertain: Will the project enhance their efforts, or thwart them?

A hero or a collaborator?

North Holland juts like the thumb of a right mitten into the North Sea. A decade before the community house was inaugurated in January 1937, the land beneath it was seabed. The first students, 11 boys and four girls, arrived in 1934 to live in barracks that had housed the polder’s builders. Their task: to build a school.

The farm school admitted refugees for a two-year course. Its purpose was to help them emigrate, the only way The Hague would allow the school to function. Residents spoke German; there was no need to learn the language of one’s temporary home.

Gertrude van Tijn, a leader of the Dutch Jewish refugees committee — tasked with finding countries that would accept thousands of Germans and Austrians forced to flee the Nazis — handled admissions. Most of the Werkdorp’s budget came from Dutch Jewish donors, with contributions from Jewish groups in Britain and America. Students’ families paid fees if they could.

The Werkdorp, circa 1936. Photo by Willem de Poll/National Archives

The school was internationally recognized. James G. McDonald, the American high commissioner for refugees of the League of Nations, attended its opening ceremony. The legal scholar Norman Bentwich praised the village in The Manchester Guardian. Although the school was non-Zionist, Henrietta Szold, a leader of Youth Aliyah, brought 20 German teenagers there in 1936.

Werkdorp Wierengermeer helped at least 500 German and Austrian Jews, ages 15-25, escape the Nazi regime.

It was Van Tijn, a German Jew who’d married a Dutchman, who got my father, George Landecker, out of Buchenwald. He had been arrested in Frankfurt on Kristallnacht, the November 1938 pogrom, and sent east by train to Buchenwald.

In the camp he met his friends and teachers from Gross Breesen, a farm school in eastern Germany, from which he had graduated that May. Breesen was the Werkdorp’s sister farm school. By admitting the Breeseners and my father to the Werkdorp, Van Tijn got Dutch entry permits for all.

For the Gestapo in January 1939, such proof that a prisoner could leave Germany secured freedom.

Van Tijn saved thousands of young people like my father, but she worked with the Nazis to do so. After the war, historians and people seeking to repatriate Dutch Jews called her a collaborator. She moved to the United States and wrote a memoir, in which she criticized other Jewish leaders for their decisions under German rule. According to her biographer Bernard Wasserstein, she never published the memoir because she didn’t want to make money from describing the atrocities she had seen.

When my father arrived in 1939, the Werkdorpers were cultivating 150 acres — there was wheat, oats, rye, barley, and sugar beets for the animals: 60 cows, 40 sheep, and 12 workhorses. The residents raised chickens, grew vegetables, and baked their own bread. The school taught carpentry, welding and plumbing, skills I would see my father use, not always deftly, later as a dairy farmer in New York state. (Dad was a good farmer, but he was less than expert in all the other skills a farmer needs.)

My father got a visa to America and left Rotterdam on the steamship Veendam, arriving in New York on Feb. 5, 1940. Three months later, the Nazis invaded Holland, cutting off all routes of escape.

‘Their names should be spoken’

Over the decades, Wieringer residents have found ways to commemorate the residents who died.

Marieke Roos, then a board member of the Jewish Work Village Foundation, proposed a monument of their names. She raised funds and recruited volunteers. Completed in 2021, the memorial comprises 197 glass blocks embedded in a semicircle at the building’s gateway. They mirror the layout of the dorms, now long gone, which once embraced the rear of the community house. Each block commemorates a student, teacher, or family member deported and murdered. One honors Frits Ino de Vries (1939–43), killed at Auschwitz with his mother and sister, Mia Sara, who was 5.

A man works in the Werkdorp kitchen. Photo by Willem de Poll/National Archives

Corien Hielkema, also from the foundation, teaches local middle schoolers about the Werkdorpers’ fate. Each student creates a poem, painting, or website about a Werkdorper because “their names should be spoken and their stories told,” she told me.

Rent from migrant workers may sound like an unusual way to fund a memorial center. But in Joep Karel’s plan, such housing would be built behind the community house,  and would be reminiscent of the dormitories where my father lived. Hollands Kroon’s biggest exports are flowers, cultivated by workers from the eastern EU. The region desperately needs housing for these temporary workers. In 2024, the province gave Karel 115,000 Euros to start the project.

Joël Cahen, who chairs the fundraising for Karel’s Jewish Work Village Cultural Center, says that attracting tourists here won’t be easy — it’s a 45-minute drive from Amsterdam, “along a boring road,” he said.  Nevertheless, he said he thinks Karel’s idea will work, though “it will take time.”

Some neighbors objected to housing migrant workers, Cahen said. They feared noise pollution, traffic and drugs. Months of legal delay produced a court decision in Karel’s favor, but by then construction costs had skyrocketed.

Now, Cahen said, Karel needs an investor. The developer did not answer a question about how that search is going, except to say, via Cahen, that he would break ground “as soon as possible.” Roos says she has been hearing “soon” for years.

A young woman operates an iron at the Werkdorp. Photo by Willem van de Poll/National Archives

And if the housing were to be completed and the workers arrived, where would they hang their laundry, store their recycling, hide their trash? It would be hard to hide the chaff of daily living on the site’s four acres. Who would visit such a memorial center, and how would the owner keep it running?

Those are legitimate questions, Cahen said. But “we need people to help us push this thing forward. This is a chance.”

Kees Ribbens, a senior researcher at the NIOD Institute for War, Holocaust and Genocide Studies, in Amsterdam, told me that the community house has no “comparable examples in the Netherlands.” It is a “special building,” and a memorial center “would certainly be appropriate.”

Most of the agricultural training centers that saved German Jewish youth have been destroyed or reused. The director’s house of a farm school in Ahlem, Germany, is now a museum. But it became the local Gestapo headquarters, so it also tells that story. The Ahlem school buildings are gone. Gross Breesen, now in Poland, is a fancy golf spa.

The Werkdorp is one of a very few farm schools in Europe whose original building is dedicated to its history.

What my father did and didn’t tell me

My father talked a lot about his first farm school, Breesen. Survivors from Breesen, in America and around the world, remained his closest friends.

George Landecker in Frankfurt, 1938, shortly before he was arrested. Courtesy of Heidi Landecker

Yet he mentioned his time in the Netherlands only once. My mother had served a Dutch cheese to some guests. Dad told us how he’d been hitchhiking in Holland with a friend, when a truck carrying Edam cheeses had picked them up. They rode in the truckbed, hungry, surrounded by giant cheese wheels.

It was such a slim memory. I assumed he had lived in Holland for a few weeks. I learned only recently that Werkdorp Wieringermeer had protected him from January 1939 until February 1940.

Now I think my father didn’t want to remember his Dutch year. Because like refugees today, everywhere, he was terrified.

Dad once told an interviewer how he’d read a memoir by a man who was arrested on Kristallnacht and transported by train to Buchenwald. My father realized, “That’s me. I did that too.” He had no memory of actually doing it at all.

The brain is good at shielding us from trauma. His year at Werkdorp Wieringermeer may have been like his train ride after Kristallnacht, a time he needed to forget. He was worrying about his parents and siblings, who would not escape Germany until November. (One brother, his wife, and toddler would not survive the war.) He was anxious about the U.S. visa the Breeseners had applied for as a group (they circumvented the American quota on Germans, another story). He had been forced to watch people hanged at Buchenwald for trying to escape.

A young man demonstrates the farming duties the Werkdorp trained him for. Photo by Willem van de Poll/National Archives

Yet my father was an optimist when I knew him, and never dwelled on suffering. And I never thought, “I should ask about his experience in the Holocaust because I will want to write about it one day.”

So the only thing I knew about his experience in the Netherlands was that he’d hitched a ride in a truck full of cheese.

An hour’s drive beyond the Werkdorp from Amsterdam, there’s a memorial to the 102,000 people deported from the transit Kamp Westerbork and murdered during the Second World War. It draws 150,000 visitors annually. Cahen hopes the Werkdorp could attract 10,000.

Like Westerbork, the Werkdorp was a transit point — but with a key difference: Many of its residents were saved.

As the daughter of one of them, I hope the tension over the future of its community house will ease, and that someone will make a grand memorial center flourish there.

The post What will become of the Dutch farm school that saved my father from the Nazis? appeared first on The Forward.

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