What territory did the United States purchase from France in 1803?

The Louisiana Territory was purchased from France in 1803, a significant event in American history known as the Louisiana Purchase. This acquisition doubled the size of the United States at the time and included land that would later become part of several states, including Montana, North Dakota, South Dakota, and Missouri, among others. The purchase was made for about $15 million and was driven by President Thomas Jefferson's desire to secure land for future generations and enhance the nation's agricultural prospects.

The other territories mentioned are not related to the Louisiana Purchase. The Florida Territory was acquired later through negotiations and treaties with Spain, Texas was primarily annexed in 1845 following its independence from Mexico, and the Oregon Territory was obtained through a treaty with Britain in 1846. Each of these territories has its unique history of acquisition, distinct from the events surrounding the Louisiana Purchase.