Complex sentence: Campus Martius was a fortification at the Marietta, Ohio settlement and home to Rufus Putnam, Benjamin Tupper, Arthur St. Clair, and other pioneers from the Ohio Company of Associates during the Northwest Indian War.
Split into simpler sentences: Campus Martius was a fortification at the Marietta, Ohio settlement. Home to Rufus Putnam, Benjamin Tupper, Arthur St. Clair, and other settlers during the Northwest Indian War.