The document summarizes the early people of Ohio from the first hunter-gatherers who crossed the Bering land bridge to the various mound builder cultures like the Adena, Hopewell, and Fort Ancient. The Adena were the first to build mounds around 3,000 years ago and grew crops. The Hopewell arrived later and built large geometric earthworks, traveled widely, and were skilled craftsmen and traders. The Fort Ancient culture followed and built villages near the Hopewell earthworks before all three cultures disappeared.