Is true the Iroquois people typically moved every 20 to 25 years?

Yes, the Iroquois people traditionally practiced a form of semi-nomadic agriculture that involved moving their villages every 20 to 25 years. This practice was often due to soil depletion from intensive farming and the need to find new fertile land. They would rotate their agricultural fields, allowing previously used areas to regenerate. However, the frequency and necessity of movement could vary based on environmental conditions and community needs.