Complex sentence: He went on to lecture and research at different universities, first at Hollins College in Roanoke, Virginia and as a guest teacher at the University of North Carolina, Duke University, Paris, Brussels, Mainz and Guadalajara.
Split into simpler sentences: He went on to lecture and research at different universities. He lectured first at Hollins College in Roanoke, Virginia but was also guest teacher at the University of North Carolina, Duke University, Paris, Brussels, Mainz and Guadalajara.