A trove of 170,000 Jewish documents thought to have been destroyed by the Nazis during World War II has been found.

On Tuesday, the New York-based YIVO Institute for Jewish Research announced the find, which contains unpublished manuscripts by famous Yiddish writers as well as religious and community documents.

Among the finds are letters written by Sholem Aleichem, a postcard by Marc Chagall, and poems and manuscripts by Chaim Grade.

YIVO, which was founded in Vilnius in what is now Lithuania, hid the documents in 1940, but the Organisation moved its headquarters to New York during World War II.

The documents were later preserved by a Lithuanian librarian, Antanas Ulpis, who kept them in the basement of the church where he worked.

Contract of Y. L. Peretz, the classic of the Yiddish literature, for publication and distribution of the 10 volumes of his collected works, 1914. Credit: Courtesy of the YIVO Institute for Jewish Research, New York.

Contract of Y. L. Peretz, the classic of the Yiddish literature, for publication and distribution of the 10 volumes of his collected works, 1914.
Credit: Courtesy of Martynas Mažvydas National Library of Lithuania and the YIVO Institute for Jewish Research in New York.

Most of the documents are currently in Lithuania, but 10 items are being displayed through January at YIVO, which is working with the Lithuanian government to archive and digitise the collection.

“These newly discovered documents will allow that memory of Eastern European Jews to live on, while enabling us to have a true accounting of the past that breaks through stereotypes and clichéd ways of thinking,” YIVO Executive Director Jonathan Brent said Tuesday in a statement.

Senate Minority Leader Charles Schumer,  praised the discovery.

“Displaying this collection will teach our children what happened to the Jews of the Holocaust so that we are never witnesses to such darkness in the world again,” Schumer, who is Jewish, said in a statement.

Dani Dayan, Israel’s consul general in New York, compared the documents to “priceless family heirlooms.”

“The most valuable treasures of the Jewish people are the traditions, experiences and culture that have shaped our history,” he said. “So to us, the documents uncovered in this discovery are nothing less than priceless family heirlooms, concealed like precious gems from Nazi storm troopers and Soviet grave robbers.”

Poem “To my brother”, written by Abraham Sutzkever, one of the greatest Yiddish poets of the 20thcentury, in the Vilna ghetto, 1943.<br /> Credit: Courtesy of Martynas Mažvydas National Library of Lithuania and the YIVO Institute for Jewish Research in New York.

Poem “To my brother”, written by Abraham Sutzkever, one of the greatest Yiddish poets of the 20thcentury, in the Vilna ghetto, 1943.
Credit: Courtesy of Martynas Mažvydas National Library of Lithuania and the YIVO Institute for Jewish Research in New York.