Complex sentence: After 3 years at Tulane University, until 1911, Phillips moved to the University of Michigan and stayed until 1929, and then taught at Yale until his death of throat cancer at age 56 in 1934.
Split into simpler sentences: After 3 years at Tulane University until 1911, Phillips moved to the University of Michigan and taught there until 1929. He then was a professor at Yale until his death of throat cancer at age 56 in 1934.