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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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George Washington University Investigates Contaminated ‘Vial’ Which Injured Jewish Student

Demonstrators gather at The George Washington University in Washington, DC on March 21, 2025, to protest the war in Gaza. Photo: Bryan Dozier via Reuters Connect

George Washington University said this week that it was investigating a shocking report that someone possibly poisoned a Jewish student by placing contaminated “vials” near the site of an Israel Fest event held there last month.

“At least one student was injured by the incident, which is now under an investigation that will examine among other things whether individuals were targeted based on their Jewish faith,” the university, which sits just blocks away from the White House, said in a statement on Tuesday. “The university condemns this reprehensible and criminal action. Acts like this have no place in our community, which is a safe and inclusive space for individuals of all backgrounds, perspectives, and experiences.”

Jonathan Turley, a law professor at George Washington University (GW), wrote on his website that Israel Fest “is a celebration of Israeli food, music, and culture.”

“The event often draws protesters,” he continued. “I have spoken to Jewish students about their fear of attending, including visiting the popular camel brought to campus each year. Others have told me how students in classes for weeks have been bad-mouthing the planned event and have described those attending as ‘supporting genocide.’”

This latest threat against the Jewish community comes amid an epidemic of antisemitic violence in the US. According to the Anti-Defamation League’s (ADL) latest annual audit of US antisemitic incidents, assaults against Jews increased 4 percent in 2025, and perpetrators are more often resorting to using “deadly weapons” in the commission of their crimes. That raises the likelihood that their actions result in severe injury or death.

The advocacy group noted that the upward shift was reflected in the shocking murders of Jews in antisemitic attacks in the US for the first time since 2019. Two Israeli embassy staffers — a young couple set be engaged — were shot dead in Washington, DC last May, and weeks later a firebombing in Colorado claimed the life of an octogenarian. In both crimes, the alleged killers cited anti-Zionism as their motivating ideology.

Other incidents which stopped short of the worst possible outcome continue to create a sense of insecurity for American Jews. Over the past year, for example, The Algemeiner has reported on a public-school principal’s inveighing against “Jew money,” an attempted arson at the Hillel International chapter in San Francisco, California, and the movement of some conservative students into the far-right ecosystem of antisemitism — a path cleared by Nicholas Fuentes, Candace Owens, Kanye West, and troops of social media influencers.

“Behind every one of these incidents is a real person: a family threatened at their synagogue, a rabbi attacked on the street, a student harassed on campus,” ADL senior vice president Oren Segal said in a statement regarding the organization’s latest statistics on antisemitic violence and discrimination. “The safety of Jewish communities depends on our collective willingness to meet this moment with urgency, which is what we’re doing every day at ADL.”

George Washington University has allegedly been a microcosm of societal antisemitism, as reported by various claims described in court documents. One ongoing lawsuit alleges that the university enabled an eruption of antisemitic discrimination on campus by declining to intervene in a slew of incidents in which anti-Zionists threw rocks at Jewish students, vandalized the campus office of Hillel International, and uttered slurs such as “filthy k—ke.” Meanwhile, The Algemeiner has reported extensively on the activities of its Students for Justice in Palestine (SJP) chapter, which once threatened a Jewish professor and continues to spread antisemitic tropes about Israel.

“Given the history of antisemitic protests on campus, the [latest Isael Fest] incident is chilling for many on our campus,” Turley wrote.

However, rising hatred will not stop the campus Jewish community from being visible and unafraid, the school’s Hillel proclaimed in a statement issued on Wednesday.

“We are grateful to GW officials and security personnel for their swift response,” the group said. “Incidents like this will not deter our community. GW Hill will continue to support our students so they can proudly be Jewish.”

Follow Dion J. Pierre @DionJPierre.

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Shabbos Kestenbaum: The New Encampments

The “People’s University” encampment, established by Students for Justice in Palestine, on the campus of Smith College in April 2024. Photo: Screenshot

The encampments have returned. At Smith and Occidental Colleges, the ugliest form of campus bigotry since the 2024 Tentifada is back.

The 2023-2024 academic year saw an unprecedented wave of antisemitic incidents on American college campuses. Infamously, anti-Israel “encampments” — also known as the Tentifada — took over at least 80 campuses during this period. These pro-Hamas zones were designed to make Jewish students feel unsafe. Sadly, they’re here once again.

At Occidental College in Los Angeles, students set up the “Rafah to Jenin Liberated Zone.” Organizers recently called it the longest-lasting encampment since 2024. The radicals were handing out “No Zionists” pins and red inverted triangle stickers, a symbol Hamas uses to mark targets.

In 2024, Occidental settled a Title VI complaint filed by the Anti-Defamation League (ADL) and Brandeis Center, agreeing to implement sweeping reforms to address antisemitism. The agreement explicitly states that “no Zionist” litmus tests may constitute discrimination against Jewish or Israeli students.

At Smith College in Massachusetts, radicals occupied Chapin Lawn and renamed it “the People’s University.” They demanded divestment from Israel and called for a critical race theory curriculum. The president and chairwoman of the Board of Trustees agreed to sit down with the ringleaders. Despite this concession, the coordinators pledged to continue disrupting campus.

The Smith College jihad pajama party disbanded only after the college’s administration agreed to enter into sustained negotiations with the anti-Israel rule-breakers. The radicals openly stated that they will continue to disrupt campus life to demand divestment and threatened that “if the institution won’t give it to us, we will make it.”

Allowing these terror-supporting encampments to fester is a losing strategy for college administrators. It causes real damage, both physical and institutional, at the schools that fail to immediately disband them. Many colleges are now under investigation for failing to protect their students during the spring 2024 semester.

One of the most destructive tentifadas occurred at Columbia University. Pro-Hamas radicals seized the Butler library in May 2024, disrupted final exams, and targeted Jewish students. They besieged Hamilton Hall, smashed open the doors with hammers, injured security personnel, and barricaded themselves inside. Jewish faculty lost access to campus. Jewish students alleged structural antisemitism in a lawsuit. Ultimately, Columbia canceled in-person classes and commencement ceremonies for the remainder of the school year.

Across the United States, campus agitators vandalized property with swastikas and terrorist propaganda and defaced war memorials and statues of American heroes. They smashed and occupied buildings and poured cement into sewage systems. Jewish students faced violent threats and were blocked from getting to class. In some cases, physical violence resulted in the hospitalization of Jewish students. Due to the severity of the campus disruptions, many classes and graduation ceremonies were canceled across the country.

The Tentifada caused an estimated $3 million in property damage at the City College of New York, millions in damage at Cal Poly Humboldt, and $29 million across the University of California system, including new security measures, law enforcement, and the destruction of campus spaces. These incidents are just a small portion of the damage that was done by pro-Hamas radicals on American campuses during the 2023-2024 academic year.

The Tentifada was a dark chapter for American universities. Pro-Hamas campus radicals are now trying to start a new chapter of destruction and disorder. Administrators must not let them. The response should be immediate: disband the encampments, impose disciplinary proceedings, expel participants, and refer criminal conduct for prosecution. American universities exist to educate students, not to host pro-Hamas block parties.

Shabbos Kestenbaum is a political commentator at PragerU and a former lead plaintiff in a civil rights lawsuit against Harvard University.

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The Special Importance of Memory in Judaism

The entrance gate of a Jewish cemetery in Gauting, Starnberg, Upper Bavaria, Bavaria, Germany, on Nov. 8, 2020, is a wrought iron gate adorned with a Star of David. It stands between two stone pillars, leading into a tree-lined cemetery with gravestones and a pathway visible in the background. Photo by Michael Nguyen/NurPhoto via Reuters Connect

A few weeks ago, I conducted the funeral of Ron Plotkin, former owner of Monster.com and once a leading philanthropist in Los Angeles. In recent years, his life changed drastically — from prominence and influence to obscurity and hardship.

I knew Ron at his height and stayed in touch as others drifted away. By the time he died, there were no resources left — not even enough for a burial. We arranged for him to be laid to rest through charitable means at the Jewish cemetery in Commerce, California.

Sadly, we struggled to find 10 men to attend Ron’s funeral so Kaddish could be recited. A group from my synagogue agreed to come, but there were only nine of us. We stood in the blazing sun, waiting for a minyan.

Suddenly, a 10th man appeared: Shalom Raichik — originally from Los Angeles, now living in Baltimore — was at the cemetery just at that moment and agreed to join us.

After I recited Kaddish for Ron, Shalom asked if we could gather at another nearby grave to say Kaddish again, along with a memorial prayer.

“Who is it?” I asked. Shalom’s answer sent a chill through all of us. It is a story I cannot put out of my mind — a story about reclaiming someone who had disappeared from history.

We often think of death as a single, final event. But Jewish tradition introduces a powerful idea: a person can die twice. The first death is physical. The second is when they are forgotten — when no one remembers their name, or visits their grave, or even knows they existed.

The man we said Kaddish for that day is marked as “Ploni ben Avraham” — the Jewish equivalent of John Doe. We don’t know his name.

His story is tragic yet extraordinary: He survived the Holocaust, came to America alone, had no money and no family, and lived quietly in New York in obscurity.

At some point, he sought the help of Dr. Maurice Frey, a dentist and fellow refugee who had escaped Europe during the war. Dr. Frey was known for caring for penniless Holocaust survivors and treated this man without charge.

The patient, wanting to keep his dignity, insisted on giving something in return and arranged to donate his body to medical science, requesting his skull be given to Dr. Frey for educational use.

Years later, long after the encounter had been forgotten, a small package arrived containing the man’s skull. Dr. Frey tried to transfer it to the NYU School of Dentistry, but when they declined to take it, he kept it.

After his death, Dr. Frey’s widow moved to California, bringing the skull with her. There, she sought its disposal according to Jewish law and was directed to Chabad, who helped arrange a proper burial in 2021. Though only a skull remained, they honored the survivor and fulfilled the obligation to respect even the smallest remnant of a Jewish life.

Still, something was missing: There was no name, no marker, and no memory. Visitors to the cemetery unknowingly walked over his grave. A man who had survived the worst horrors was, even in death, being trampled, not by malice but by ignorance.

Finally, a small group decided to act, and this past January, they placed a modest stone, simply acknowledging that Ploni ben Avraham had existed and was not forgotten. And a few weeks ago, someone finally said Kaddish for him at his grave.

At Ron Plotkin’s funeral, having just buried a man once surrounded by success and admirers, but who died nearly alone, and then walking over to the grave of Ploni ben Avraham, I was struck by how fragile life and legacy can be.

Ron had a name and achievements, and was once celebrated, but at the end, there were barely 10 people at his funeral. Ploni ben Avraham had no name or notable achievements, and no family to remember him — yet, by chance, both were remembered on the same day. Their second death was averted.

At the end of Sefer Vayikra, in Parshat Bechukotai, the Torah presents consequences for the Jewish people’s fidelity or disregard for their responsibilities. It seems like a strict formula of reward and punishment: Follow God’s laws and you’ll receive blessings; abandon them, and hardship will follow.

And yet, within this passage, there is a quieter message. After the warnings and descriptions of suffering, the Torah offers a redemptive promise (Lev. 26:42):I will remember My covenant,” says God.

That is the turning point. Even if everything falls apart — even if the people are scattered and shattered — God says: I will remember, I will always remember.

God teaches us that memory is the foundation of meaning. In Jewish thought, remembering is not merely recalling; it is restoring. When God says, “I will remember,” it is an active commitment: No matter how far we fall, we are never erased.

That is why we say Kaddish — not for the dead, but because memory sustains identity. It ensures a person’s life continues to echo in this world. We mark graves, tell stories, and cling to names — because the greatest tragedy is being forgotten.

That is why we tell stories about the dead, and that is why we refuse to let people disappear after they’re gone. Because the ultimate curse is not suffering, or even death. It is oblivion. And the ultimate redemption is not just survival. It is being remembered.

When we remember someone, we return them to the narrative. We restore their place in the story of our people. Ploni ben Avraham had no land, no family, and no possessions. He didn’t even leave a name. But we still remember him, and that is his redemption.

That day in the cemetery, I was reminded that in the end, what matters is not how loudly a person’s life is celebrated at its peak, but whether it is remembered after they are gone. And sometimes, in the most unexpected ways, we are invited to be part of that remembering.

The author is a rabbi in Beverly Hills, California.

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