Complex sentence: Thereafter, he enrolled at Ohio State University, where he earned a second bachelor's degree in 1959, an M.A. in communications in 1959 or 1960, and a Ph.D. in sociology and anthropology in 1965.
Split into simpler sentences: Thereafter, he enrolled at Ohio State University, where he earned a second bachelor's degree in 1959 and an M.A. in communications in 1959 or 1960. He earned a Ph.D. in sociology and anthropology in 1965.