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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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Why I’m vibing with the pope’s first big statement
I have long been obsessed with the Vatican and the inner workings of the papacy. (I majored and did my Master’s in religious studies.) But usually other people are not as tickled as I am by analyzing the newest theological statements from the Holy See.
Not this week. Pope Leo XIV just put out his first encyclical — the term used to refer to official statements outlining the church’s stance on a topic — and it has gone viral. “Spitting fire right out the gate,” said one of many similar trending posts, as though the encyclical was a rap song.
The topic is buzzy: AI, which the pope casts as one of the greatest threats to human flourishing and morality. (The encyclical is titled “Magnifica Humanitas,” or “Magnificent Humanity” in English, if that gives you the gist.) “Humanity, created by God in all its grandeur,” it opens, “ is today facing a pivotal choice: either to construct a new Tower of Babel or to build the city in which God and humanity dwell together.”
The document notes many of the concrete risks of AI — sexual abuse, distortion of facts, job loss — and calls for pragmatic solutions. But it is, at its heart, a testament to what makes humans human, written with palpable adoration for the people of the world: our creativity, our empathy, even our weaknesses. It’s a declaration that machines can never have the ineffable qualities of God’s children.
Structuring our world around technology, Leo writes, reduces “creation to an object of exploitation and human beings to mere cogs in a system driven toward ever greater efficiency.”
Later, in a paean to the importance of deep thought over easy answers, he goes on: “The speed and ease with which answers or summaries can be obtained risk extinguishing the desire to ask questions,” he writes, calling on the world “to protect our young people from the promise of the perfect machine” and warning against rendering “human thought seemingly superfluous precisely when it is most needed.”
“Magnificatus Humanitas” is a major statement, both in length — more than 43,000 words — and in symbolism. A pope’s first encyclical indicates the issues they believe are most important to the church, and signals the likely direction of their papacy.
That direction, for Pope Leo, is to be a voice for moral leadership, writ large. He addressed the encyclical not only to Catholics or even Christians, but “to all men and women of goodwill,” and cited thinkers like Hannah Arendt and J.R.R. Tolkien alongside the Bible.
It’s a declaration of a new — or, arguably, very old — relevance for religious leaders. As people rush through our increasingly fast-paced, frantic world, striving to keep up with the newest technology or geopolitical shift affecting markets and jobs, the slow-moving, zoomed-out perspective of religious leaders seems to be more and more important.
The Vatican held massive authority both moral and military for much of Western history. But its sway faded in the modern age. As democracy rose, Christianity broke into factions and religion’s prominence weakened, leaving the Church without the same ability to bestow a divine mandate on nations and rulers.
So many modern popes have kept their sights more narrowly focused on the theological. Even Pope Francis, who was a liberal, modernizing force for the church, and spoke out strongly on topics like the environment and immigration, focused three of his four encyclicals on Christian theological concepts like the Sacred Heart and Christianity as the world’s guiding light.
Pope Leo, however, seems to have found his way to modern, secular relevance by speaking out clearly on major issues of the day. He notes that he drew inspiration for “Magnificatus Humanitas” from Pope Leo XIII, an influential pope in the late 1800s and the inspiration for the modern Leo’s own papal moniker, whose 1891 encyclical “Rerum Novarum,” on the economy and conditions of the working class, was criticized for insufficient focus on the Gospel. The current pope’s own document is remarkably concrete and political.
Making political statements isn’t new for Leo, but the encyclical canonizes his boldness into an official form. In the past few months I’ve written about the ways in which Pope Leo has used sermons and statements to directly counter those made by U.S. leaders. After Pete Hegseth made a speech implying the U.S. military is doing God’s will, the pope gave a homily saying that prayers for war cannot be heard by God. He has made strongly worded comments about the rights of immigrants as Trump announced increased ICE raids, and made a point of appointing foreign bishops in American parishes. He has refused to visit the U.S. despite the fact that he is American and has been invited numerous times, including for the nation’s 250th birthday; he is instead planning to visit an island that serves as a refugee landing point in the Mediterranean.
It’s not all that surprising that Leo is making pronouncements on the justness of wars; popes have always given commentary on the world, albeit often less pointedly. Of course, Catholics have always looked to the pope for moral leadership — though that is increasingly under question, as renegade Catholics doubt the pope. (Even J.D. Vance, a Catholic convert with a book coming out about his conversion, has warned the pope to be “careful” with his theological interpretations — a near heretical statement. That’s how Protestantism came about.) The difference today is that everybody is listening.
I think the reason is that there is a certain ineffable quality that can’t be accounted for in so much of modern-day discourse in our metrics-focused world. Everything needs to be provable with a statistical analysis or some quantifiable indicator, or it needs to be as profitable as possible to extract value. But so much of what is most valuable in the human experience is intuitive — experiences and emotions like love, joy, transcendence. Connection with each other. Religious leaders have been honing the language to talk about these qualities for centuries, and they guard one of the only arenas in which the intangible remains central.
Of course, there are also plenty of issues with religious institutions, and the Vatican in particular is famous as a site where abuses of power were hidden and protected. But “Magnifica Humanitas,” and its virality, points toward a new relationship with religion, and a newly important role for it to play.
Or maybe that’s just wishful thinking, a hope for my own increased importance as a religion reporter.
The post Why I’m vibing with the pope’s first big statement appeared first on The Forward.
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How can I live freely as a Jew in a world where strangers rip my mezuzah off my doorframe?
Twice, the mezuzah on my front door was ripped off.
The first time, I was shocked. The second time, I made a decision that still pains me. I did not put it back up.
This was before the Hamas attack of Oct. 7, 2023.
That is the part I keep coming back to. The fear did not begin after the Hamas attacks. It was already there, intruding with the quiet calculation of whether a small Jewish symbol on my home made me less safe.
A mezuzah is not a political statement. It makes no argument about a government or a war. It is a sacred object, a marker of memory, a tiny declaration that says: Jews live here. I thought about that mezuzah again recently when the Anti-Defamation League released its annual audit showing that antisemitic physical assaults in the United States reached record highs in 2025. That increase reflects something many Jews already feel in daily life: the slow erosion of ease, the daily calculation of whether to speak up or stay quiet — things I have felt since the first time my mezuzah was violently torn off my doorframe.
Since then, the realm in which I feel safe as a visibly Jewish person has been shrinking from all directions.
After the Oct. 7 attack, the bulletin boards in my apartment building began filling with calls to boycott Israel. Campaign flyers for a Jewish political candidate who came to speak there were defaced with Hitler mustaches. I learned to scan the walls before I scanned my mail.
This was not happening on a campus quad or in some distant place. It was happening where I live.
Then, among my mother’s things, I found a Star of David necklace from the 1930s — marcasite set against black onyx, delicate and old. A boyfriend had given it to her when they were both 14.
I put it on in Florida, where I spend much of my time caring for my mother. I loved wearing it. It felt like more than jewelry. It felt like inheritance, memory, and a small way of carrying my family with me.
But when my mother knew I was going back to New York, she told me to take it off.
My mother is 102. She is not easily frightened. She has lived long enough to know when the temperature in the room has changed. She was not making a political argument. She was trying to protect her daughter.
I still wear that Star of David. But I admit I am selective. In New York, there are moments when I leave it visible and moments when I tuck it under my shirt. That calculation itself tells me something about the world I am moving through.
Recently, in a private Facebook group for women essayists, I shared a personal piece I had written for the United Kingdom-based Jewish Chronicle about how Oct. 7 changed life for my mother and me. It was not a political manifesto. It was a reflection on fear, Jewish identity, aging and visibility.
And still, I was attacked by other writers.“What about Gaza?” I was asked. The message was clear: even my personal Jewish pain had to pass a political test before it could be acknowledged.
That is the narrowing.
This ugliness is coming from more than one direction now. It stems from old conspiracy theories on the right and newer moral certainties in some of the progressive spaces where I once felt most at home. Different language brings about the same result: Jews become less human, less particular, less entitled to fear.
That collapse is what frightens me most: the definitional collapse between Jew and Israeli; Israeli and Israel’s government; Jewish symbol and political provocation; mezuzah and target.
As Jews like me reckon with that collapse, we must reckon with how much we’ll go along with it.
Right now, too often, Jews are being asked to choose between our own safety and our compassion for others. We should be able to prioritize both. I am a Zionist. I believe in the right of the Jewish people to a homeland. I also believe Palestinians are human beings who deserve freedom, dignity, and protection from suffering.
These beliefs should not cancel each other out. They should make us more careful, more humane, more committed to truth.
Yet now we must choose between speaking about antisemitism and being accused of indifference to other hatreds. That is no way to live.
Since Oct. 7, I have found myself going to synagogue on Shabbat, something I never did before. I was a High Holiday Jew. Now I seek out rooms where I do not have to explain why this moment feels frightening. I have learned where I feel seen. I have learned who can hold my fear without turning it into an argument.
The mezuzah I did not put back up is small. It fits in the palm of my hand.
But what it represents is not small: memory, faith, survival, home, and the right to be visibly Jewish without fear.
When I did not put it back up, I told myself I was being practical. But now — after Oct. 7, the bulletin boards, my mother’s warning, and the explosive allegations I’ve seen travel through respected media without sufficient care or verification — I understand it differently.
I was not just protecting a doorframe. I was learning to shrink.
The post How can I live freely as a Jew in a world where strangers rip my mezuzah off my doorframe? appeared first on The Forward.
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Podcast: A lively conversation in Yiddish with actress Lea Koenig
ס׳איז לעצטנס אַרויס אַ פּאָדקאַסט מיט דער באַליבטער אַקטריסע אין ישׂראל, ליאַ קעניג, וועלכע איז הײַנט צום בעסטן באַקאַנט ווי די ייִדיש־רעדנדיקע באָבע פֿונעם פּערסאָנאַזש שלום שטיסל אין דער ישׂראלדיקער טעלעוויזיע־סעריע „שטיסל“.
אינעם שמועס באַטייליקן זיך אויך יניבֿ גאָלדבערג — דער מחבר פֿון אַ נײַער ביאָגראַפֿיע וועגן איר אויף ענגליש; דער איבערזעצער און דראַמאַטורג מיכל יאַשינסקי, און דער ייִדישער זינגער און קולטור־טוער חיים וואָלף. דעם פּאָדקאַסט האָט טראַנסמיטירט די באָסטאָנער ראַדיאָ־פּראָגראַם „דאָס ייִדישע קול“.
ליאַ קעניג גיט איבער אירע זכרונות במשך פֿון איר לאַנגער קאַריערע אין ייִדישן טעאַטער, ווי אויך אינעם העברעיִשן טעאַטער, טעלעוויזיע און קינאָ. כּדי צו הערן דעם פּאָדקאַסט, גיט אַ קוועטש דאָ.
The post Podcast: A lively conversation in Yiddish with actress Lea Koenig appeared first on The Forward.
