Michigan

Detroit is a state in the United States of America. One of its largest cities is Detroit.

History
Little is known about the history of the state.

Detroit once had a large automotive industry that included US Motors. However, the industry declined and the US Motors factory was abandoned.

Henry Peter Gyrich and Bolivar Trask set up their Sentinel factory in the US Motors building but it was destroyed by the X-Men.

Gargoyle and Abomination accidentally unleashed a gamma virus on the city. Donald Blake brought Bruce Banner and Betty Ross there to help. This led to Thor and Hulk teaming up to stop Gargoyle and Abomination.

In the Comics
Detroit was where Iron Man, Hulk, Thor, Ant-Man, and Wasp first fought together and became the Avengers.