Complex sentence: In 1919, Schipa traveled to the United States, joining the Chicago Opera Company, singing with it until 1932, whereupon he appeared with the Metropolitan Opera from 1932 to 1935 and again in 1941.
Split into simpler sentences: In 1919, Schipa travelled to the United States, joining the Chicago Opera Company. He remained with this company until 1932, whereupon he appeared at the New York Metropolitan Opera from 1932 to 1935, and again in 1941.