Complex sentence: After graduating with Magna Cum Laude with his Bachelor's degree in history from Ohio State University in 1978, he earned his Master's and PhD from Indiana University in 1980 and 1984.
Split into simpler sentences: After graduating with his Bachelor's degree in history from Ohio State University, where he graduated Magna Cum Laude in 1978. He then earned his Master's and PhD from Indiana University in 1980 and 1984.