The Louisiana Purchase was a treaty enacted in 1803 between the United States and France. It gave the United States ownership of 828,000 square miles of territory that was known as the Louisiana Territory; this area eventually was divided and became part or all of the states of Louisiana, Arkansas, Missouri, Iowa, Minnesota, Oklahoma, Kansas, Nebraska, South Dakota, North Dakota, Colorado, Wyoming, and Montana.
France sold this territory to the United States for the amount of $15 million to win the friendship of the United States and forestall an alliance between the United States and Great Britian in the war that Napoleon feared France would soon be fighting against Great Britian. President Thomas Jefferson authorized James Monroe and Robert Livingston to negotiate on behalf of the United States to establish the terms of the agreement.
President Jefferson was unsure if the Constitution authorized Congress to purchase land for the still-new United States, but determined that, as president, he had the authority to conclude a treaty with a foreign country for such a purpose. The proposed purchase was presented to the Senate as a treaty to be ratified by them; the ratification vote took place on October 20, 1803 and the United States took possession of the Louisiana Territory on December 20, 1803.
, Louisiana Purchase is another European event that influences the course of development of American prosperity. Louisiana Purchase took place on April 30, 1803. Robert Livingston and James Monroe signed the Louisiana Purchase treaty in Paris. The United States paid 15 million for land, roughly 4K an acre. The Purchase added 82800 mi of land west of Mississippi to U.S. Napoleon wanted power, so he sold Louisiana to U.S. This contributes and influences U.S development because the size of U.S was doubled. It adds on to the idea of Manifest Destiny, “sea to shining sea”.