About the Contributor(s): Geo Widengren (1907-1996) was a Swedish Orientalist and scholar of religion. He concentrated on the religions of the ancient Near East, and specifically of Iran. He also studied Judaism, Islam, and religious phenomenology. Birger A. Pearson is Professor Emeritus of Religious Studies at the University of California, Santa Barbara, and Professor and Interim Director of the Religious Studies Program at the University of California, Berkeley.
Geo Widengren was a Swedish historian of religions, professor of history of religions at Uppsala University, orientalist and Iranist. Widengren wrote a series of works on Iranian religions, Islam, Judaism, Gnosticism, etc. His most popular works include Die Religion Irans, published in 1965.