What time period did the sac and fox live in?

The Sauk and Fox tribes, Native American peoples of the Great Lakes region, primarily lived in the 18th and 19th centuries. They were known for their resistance against European encroachment and participated in various conflicts, including the War of 1812. Historically, their presence in the region dates back long before European contact, but the most significant interactions with settlers and the U.S. government occurred during this later period.