Complex sentence: Born in Massachusetts, he worked at Stanford University in the late 1940s to early 1950s before coming to serve as Chancellor of the City University of New York from 1963 to 1971.
Split into simpler sentences: Born in Massachusetts, he worked at Stanford University in the late 1940s to early 1950s. He then served as Chancellor of the City University of New York from 1963 to 1971.