The Louisiana Purchase was a significant land acquisition made by the United States in 1803. The U.S. bought approximately 828,000 square miles of territory from France for about $15 million. This purchase doubled the size of the nation and included land that would become several states, such as Louisiana, Missouri, and Arkansas.
The deal was negotiated by President Thomas Jefferson, who sought to expand the country and secure land for future generations. The acquisition provided access to vital resources and trade routes, including the Mississippi River, and played a crucial role in the westward expansion of the United States.