Complex sentence: In 1985, Jackie McLean invited him to teach at The Hartt School of the University of Hartford, where he taught until his return to South Africa in 1991, following the collapse of apartheid.
Split into simpler sentences: In 1985, Jackie McLean invited him to teach at The Hartt School of the University of Hartford, where he taught until his return to South Africa. He lived in the US until 1991 and then returned to South Africa, following the collapse of apartheid.