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A Convention between the United States of America and the French Republic (Louisiana Purchase), April 20, 1803

A Convention between the United States of America and the French Republic (Louisiana Purchase), April 20, 1803

The 1803 Louisiana Purchase was an agreement by which the United States acquired the entire Louisiana territory—over 828,000 square miles—from France. It consisted of three separate parts: a treaty of cession and two conventions providing for the exchange of money. On October 20, 1803 the Senate ratified the purchase thus doubling the size of the United States and making land available west of the Mississippi River for American exploration and expansion.

RG 46, Records of the U.S. Senate

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