This chart covers the development of the United States from colonial times (1560s) to today. It plots early European settlements and colonies, the founding of important cities, and the formation of U.S. territories and states. Major wars and other key events are also shown as well as the heads of state (British monarchs pre-independence and presidents from George Washington to Donald Trump). The chart also includes seven color-coded maps showing territorial changes over time, from the original Native American homelands to today.