Career
Born in Brody in the Galicia region of Austria-Hungary (today in Ukraine, from 1919 to 1939 in Poland), Sadan received a traditional Jewish education. He joined HeHalutz, and was one of its leaders during World War I. In 1925 he became editor of Atid, the organisation"s journal. He also edited the paper"s literary supplement.
In 1952 he was appointed head of Yiddish Studies faculty at the Hebrew University of Jerusalem, a post he held until 1970, and in 1963 became a professor
However, he resigned his seat in 1968, and was replaced by David Golomb. Also in 1965 he began teaching Hebrew literature at Tel Aviv University, where he worked until 1970.
He died in 1989 at the age of 87.