Complex sentence: When Hopkinson left "Drum", he went on to teach journalism in British universities, studied United States journalism schools, and was founding director of the Centre for Journalism Studies at University College in Cardiff, Wales, from 1970 to 1975.
Split into simpler sentences: When Hopkinson left "Drum", he went on to teach journalism in British universities and studied United States journalism schools. He was founding director of the Centre for Journalism Studies at University College in Cardiff, Wales, from 1970 to 1975.