When Nazi Germany absorbed Austria in the Anschluss of 1938, he went to the United States, where he was given a position at the Asia Institute in New York City by Arthur Upham Pope, an eminent authority on Persian art and antiquities who used the institute to help a number of displaced German scholars find work in the United States in the 1930s and 1940s. In 1943, he moved on to the University of Chicago, and was made professor of Arabic in 1949.
In 1938, following Nazi Germany's annexation of Austria through the Anschluss, this person emigrated to the United States. There, Arthur Upham Pope, an authority on Persian art and antiquities, offered him a position at the Asia Institute in New York City for displaced German scholars seeking work during the 1930s and 1940s. In 1943, he moved to the University of Chicago, where he was appointed professor of Arabic in 1949.