Complex sentence: The site of what later became the city of Saginaw was originally inhabited by the Sauk people, who lived in the area and were driven out by the Ojibwe (Chippewa).
Split into simpler sentences: The site of what is presently the city of Saginaw was originally inhabited by Native Americans. The Sauk people lived in the area and were driven from the area by Ojibwe (Chippewa).