Detroit is the most populous city in the U.S. state of Michigan. It is the largest U.S. city on the United States–Canada border, and the seat of government of Wayne County. Detroit had a population of 639,111 at the 2020 census, making it the 29th-most populous city in the United States. The Metro Detroit area, home to 4.3 million people, is the second-largest in the Midwest after the Chicago metropolitan area and the 14th-largest in the United States. A significant cultural center, Detroit is known for its contributions to music, art, architecture and design, in addition to its historical automotive background.

Fort Pontchartrain du Détroit or Fort Detroit (1701–1796) was a fort established on the north bank of the Detroit River by the French officer Antoine de la Mothe Cadillac and the Italian Alphonse de Tonty in 1701. In the 18th century, French colonial settlements developed on both sides of the river, based on the fur trade, missions, and farms.