From which country did the U.S. purchase the Louisiana Territory?

The United States purchased the Louisiana Territory from France in 1803 through an agreement known as the Louisiana Purchase. This acquisition was significant because it doubled the size of the United States at the time and provided vast tracts of land for settlement and exploration. France, having regained control of the territory after it was ceded from Spain, was looking to sell it due to various challenges, including conflicts in Europe and the need for funds.

This transaction was pivotal for the expansion of the nation, facilitating westward movement and the idea of Manifest Destiny, which shaped American policy and identity. The purchase also had important implications for relations with indigenous peoples and future territorial governance.