Complex sentence: Evans was also a visiting professor at nearby Rutgers University and Princeton University, and worked from 19978-1998 with his friend and fellow playwright August Wilson in forming the Black Theatre Summit at Dartmouth University, from which was formed the African Grove Institute for the Arts.
Split into simpler sentences: Evans was also a visiting professor at nearby Rutgers University and Princeton University. He also worked from 19978-1998 with his friend and fellow playwright August Wilson in forming the Black Theatre Summit at Dartmouth University, from which was formed the African Grove Institute for the Arts.