Ohio became the 17th state of the United States on March 1, 1803. Before statehood, it was part of the Northwest Territory, established by the Northwest Ordinance of 1787. The region was settled by pioneers seeking land and opportunity, leading to its growth and development. The process of achieving statehood involved drafting a state constitution and gaining approval from Congress. Ohio's admission was significant as it marked the first state created from the Northwest Territory, setting a precedent for future states in the region. Today, Ohio is known for its diverse culture and history.