Marcel Nadjari, a Greek Jew, wrote about the horrors he saw at Auschwitz on scraps of notebook paper. He was one of the members of the Jewish slaves who had to escort fellow Jews into gas chambers, burn their bodies, gather any gold fillings and hair, and throw the ashes into a river. He hid his notes in a thermos flask, which he buried at Auschwitz. They were found in 1979, but researchers were able to use modern technology to figure out what the notes said.
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