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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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Antisemitism and ‘The End of History’ That Never Came to Pass
Roses are placed on a sculpture of Mikhail Gorbachev in memory of the final leader of the Soviet Union, at the “Fathers of Unity” memorial in Berlin, Germany August 31, 2022. Photo: REUTERS/Lisi Niesner
In the summer of 1989, a few months before the Berlin Wall fell, a political scientist named Francis Fukuyama published an essay that came to define a new understanding in the West.
Titled simply “The End of History?”, the piece described the defeat of fascism in World War II and the collapse of the Soviet Union and its socialist ideology. It appeared that Western liberal democracy and free-market capitalism had won the ultimate battle of ideas — at least for the moment.
Events in recent years have proven this thesis false. History didn’t end — and Fukuyama probably knew it never would. The battle of ideas will always return, and in many ways, it never went away.
During the last 40 years, Western civilization, capitalism, and nationalism have been under attack. Likewise, bigotry against Jewish people never went away. There is nothing new under the sun about Jew hatred except the delivery system. The traditional engines of antisemitism have largely been supplanted by a new engine: the social media algorithm.
The stark, un-sugar coated reality is that the Jewish people have been abandoned, and the illusion of modern safety is quickly eroding.
What stings the most is the profound sense of betrayal from communities that the Jewish people poured their hearts, souls, and resources into elevating.
Over the last century and a half, the Jewish community played an outsized, foundational role in championing civil rights, fighting alongside the African American community, the feminist movement, driving progress within academia and LGBTQ rights.
To watch significant factions of those exact same groups turn their backs, stay silent, or actively fuel hostility today is a heartbreaking reality to reckon with. It sends a crystal-clear message that must be internalized immediately: there ought to be a stricter balance between “fixing the world” and tending to the survival of one’s own community.
One cannot control what is outside one’s control, but one can focus on what is in their control.
The era of relying on the world’s collective conscience is officially over, and the path forward must be primarily inward, focused on self-reliance, self-defense, and resilience. It requires an unrelenting effort to tell our story and win the war for hearts and minds. We must unflinchingly call out the blatant hypocrisy of institutional and communal betrayal, as difficult as that may be.
It is no longer sufficient to excel exclusively in the boardroom or the classroom. True self-preservation demands a willingness to face physical reality. Security cannot be guaranteed by others, and protecting families and institutions means prioritizing physical fitness and the practical readiness to defend oneself on the streets, in schoolyards, and at the workplace.
With traditional institutions increasingly failing to offer protection, self-reliance becomes an absolute necessity. We must look at past fair-weather allies and actively seek new partners who offer mutual respect and reciprocal support. Survival and resilience demand that the Jewish community adapt, unite, and lead from a position of strength.
The peaceful illusion of “The End of History” never arrived; the battle of ideas has returned, and we must be ready for the fight.
Daniel M. Rosen is the chairman and Co-founder of IMPACT, a 501c3 dedicated to organizing, empowering and mobilizing individuals to combat Jew hatred on social media and beyond. He is a regular contributor to The Jerusalem Post, JNS, Times of Israel, Israel National News, The Algemeiner, and other publications. Follow us at @joinimpactnow
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Why Do We Read the Book of Ruth on Shavuot?
Shavuot. Ruth in Boaz’s Field by Julius Schnorr von Carolsfeld, oil on canvas, 1828; National Gallery, London. Photo: Wikipedia.
All Biblical festivals and special days relate to time — whether it is daily, monthly, annually, or seasonally. Awareness of the natural world comes with awareness of oneself, our transience, and the ups and downs of life. Who are we? Where do we belong? All of this is the core of religious life, which helps us to live in the world in the best way that we can.
Shavuot started as a harvest festival. There are three. Pesach is the first, with the earliest barley crop. Shavuot celebrates the beginning of the wheat and fruit harvests. And Sukkot is the culmination of the agricultural year and the celebration of water and rain, which are essential for a successful agricultural year.
But as we became less and less of an agricultural society, other themes emerged to add to the message of Shavuot specifically. The rabbis added the theme of Torah. But why, then, did the rabbis choose the Book of Ruth to be read on Shavuot?
It is set against a background of harvests — and how unpredictable they can be. The failed harvest caused the emigration of Elimelech’s family from Israel. Then the cycle turned, and rich harvests in Israel enabled Naomi to come back. Ruth decides to stay with Naomi and become part of the Israelite people. In Ruth’s magnificent declaration “Where you go, I will go. Where you stay, I will stay. Your people are my people, and your God, my God … only death will separate us.”
The Book of Ruth illustrates the choices people make and their consequences. To leave. To come back. To change one’s religion and nation. To act with love and care. To be charitable and kind. The goodness of a person rather than genealogy or status. It displays the redemptive powers of women. But it also recognizes the drawbacks of societies, class systems, levels of wealth, and the limitations of conventions and rules.
But Naomi and Ruth are destitute. Biblical laws required redemption. When a family fell on hard times, and sold their property, the relatives had a legal obligation to redeem the loss and try to reinstate them. The poor also had legal rights to glean fields as they were being harvested, and landowners had to leave corners of fields to the poor, all the poor, even foreigners.
The Torah set the tone for a just society, one that guaranteed that the weakest and most disadvantaged would be helped. If the Torah imposed commandments that connected humanity with God, it also required, just as much, that humans connect with each other. As the Prophet Yeshayah said repeatedly, God wants kindness more than sacrifices or hypocritical prayers.
The most popular explanation of the link between Shavuot and Ruth is that Ruth actually chose to live a life according to Naomi’s Israelite customs and ideals. She made the commitment that the Israelites made at Sinai. As Boaz said to her when he met her, “May the God of Israel, under whose wings you have come to trust, reward you.”
It does not matter where you come from as much as who you are. And this challenges us to think about what our commitments are today, and what we value and spend our time on.
Ruth’s story is of how life is unpredictable and often tragic. And yet, through human kindness — which the Bible stresses — we can find redemption and build a better world.
That’s true no matter what is happening around us; the Torah’s messages for us and our people are as important today as ever.
Happy Shavuot and Chag Sameach.
The author is a writer and rabbi, currently based in New York.
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The Limits of Campus Solidarity: Why Are Some Issues Seemingly Ignored By Campus Activists ?
University of East Anglia in Norwich.. Photo Credit: .Martin./ Flickr
Student activism on university campuses often presents itself as part of a broader global struggle for human rights and liberation. Students organize campaigns and protests under the belief that they are standing on the side of justice. Universities themselves have also long been spaces where political movements grow, and where students engage with wider global issues.
But if campus activism is truly rooted in the goal of human rights, it is worth asking why some movements receive enormous attention while others receive little to none.
Activist movements often present themselves as universal movements for justice, but in practice they are shaped by ideology and institutional campaigns. This does not necessarily invalidate these movements, but it does challenge the idea that campus activism is merely a neutral response to injustice.
An example of this contrast can be seen through the differences between campus mobilization around Gaza, and the relative absence of sustained activism in support of issues like the situation in places like Sudan — and also in Iran, including supporting Iranian students who actively protest their own government.
At the University of East Anglia (UEA), as at campuses across the UK, the past number of years has brought visible and sustained pro-Palestine organizing with protests, encampments, and marches of more than 400 students calling for divestment. It also involves motions brought before the Students’ Union resulting in a longstanding institutional boycott policy against Israel.
Over the same period, Iranian students and civilians have protested against the political repression and government-sponsored violence in Iran, most noticeably during the “Women, Life, Freedom” movement. This past January, it’s reported that tens of thousands of innocent protestors were murdered by the regime, and many more were jailed.
Yet at UEA, as at most British universities, this did not translate into encampments, sustained protest weeks, or motions to the Students’ Union. The same is true for many other conflict areas around the world — and the contrast is difficult to ignore.
The point here is not that students should protest every global issue equally. That would be unrealistic. Student movements naturally focus on certain causes more than others. But this contrast does raise an important question: what determines which global issues become campus movements and which do not?
I believe part of the answer lies in activist infrastructure. Some causes already have established student organizations and national campaigns with clear institutional mechanisms. At UEA, campaigns related to Palestine, for example, often involve established movements such as Boycott, Divestment and Sanctions (BDS), which provide students with clear actions to take, such as lobbying student government and hosting annual protest weeks where official language is promoted. There are funding networks and experienced organizers behind the scenes who help translate political concerns into sustained campus activism.
By contrast, Iranian dissident movements do not have the same level of organized support. There are fewer established student campaigns, fewer institutional demands directed at universities and fewer organized networks translating concern into campus activism. A student at UEA who wanted to organize meaningfully around Iran would find considerably less infrastructure available to them than one organizing around the Israel-Palestinian conflict.
Another factor may be related to how students interpret global politics more broadly. On many campuses, political activism tends to be framed through narrow ideas like decolonial theory and the history of Western imperialism. Within this framework student activists tend to focus on issues where Western powers are seen as solely responsible for global injustice. Whether this is introduced or sustained in classrooms or in college group meetings is a subject for another piece, but in this context it doesn’t really matter.
What this contrast suggests is that campus activism is not guided by moral principles alone, but is instead shaped in large part by the existing political frameworks.
Recognizing this does not require assuming bad intentions on the part of student activists. Many student movements are motivated by genuine concern. But like all political movements, individuals must be wary of manipulation and groupthink.
Individual action and anger become tools for someone else’s ideas, so it’s important that we are all responsible with what we choose to put our energy towards. If campus activists at UEA claim to stand for universal human rights, then they must also be willing to ask the difficult question of why some struggles seem more important than others.
Skye Phillips is a final year International Relations and Modern History student at the University of East Anglia in Norwich, England. She is a 2025/6 fellow for CAMERA. Opinions expressed are those of the author and do not necessarily reflect those of CAMERA.