Complex sentence: After teaching at the University of Michigan, in 1981 Boritt came to Gettysburg College, founding the Civil War Institute, where the school created for him the nation's first fully funded chair for the study of the Civil War.
Split into simpler sentences: After teaching at the University of Michigan, in 1981, Boritt came to Gettysburg College. He founded the Civil War Institute and the school created for him the nation's first fully funded chair for the study of the Civil War.