What 1803 U.S. acquisition from France nearly doubled the nation’s territory?

The Louisiana Purchase was the 1803 U.S. acquisition from France that nearly doubled the nation’s territory.

The United States agreed to purchase the Louisiana Territory from France in a treaty signed on April 30, 1803. The deal covered roughly 530 million acres for $15 million, or about three cents per acre. The territory stretched west from the Mississippi River toward the Rocky Mountains, although its exact boundaries were not fully clear at first.

President Thomas Jefferson supported the purchase because control of New Orleans and the Mississippi River was vital to western farmers and American trade. Napoleon Bonaparte, facing war in Europe and abandoning plans to rebuild France’s North American empire, accepted the offer.

The purchase transformed the United States, but it also intensified disputes over slavery, Indigenous sovereignty, and the future admission of western states. The Lewis and Clark Expedition began in 1804 to explore and map part of the acquired region. The acquisition was formally transferred in December 1803.