Simplify the following text for a Grade 12 native English-speaking person.
Original: Wilhelm Reich ( March 24 , 1897 -- November 3 , 1957 ) was an Austrian-American psychiatrist and psychoanalyst , known as one of the most radical figures in the history of psychiatry .
Simplified: Wilhelm Reich ( March 24 , 1897 â `` November 3 , 1957 ) was an Austrian-American psychiatrist and psychoanalyst .