Answer:
Negotiations moved swiftly, and at the end of April the U.S. envoys agreed to pay $11,250,000 and assumed claims of its citizens against France in the amount of $3,750,000. In exchange, the United States acquired the vast domain of Louisiana Territory, some 828,000 square miles of land. In October, Congress ratified the purchase, and in December 1803 France formally transferred authority over the region to the United States. The acquisition of the Louisiana Territory for the bargain price of less than three cents an acre was Thomas Jefferson’s most notable achievement as president. American expansion westward into the new lands began immediately, and in 1804 a territorial government was established. On April 30, 1812, exactly nine years after the Louisiana Purchase agreement was made, the first of 13 states to be carved from the territory—Louisiana—was admitted into the Union as the 18th U.S. state.
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