10 mar 1803 ano - Louisiana Purchase

Descrição:

The acquisition by the United States of America in 1803 of 828,000 square miles (2,144,000 square kilometers or 529,920,000 acres) of France's claim to the territory of Louisiana. The U.S. paid 50 million francs ($11,250,000) plus cancellation of debts worth 18 million francs ($3,750,000), a total sum of 15 million dollars (around 4 cents per acre), for the Louisiana territory.