USA HISTORY

Detailed explanation-1: -Louisiana Purchase, western half of the Mississippi River basin purchased in 1803 from France by the United States; at less than three cents per acre for 828, 000 square miles (2, 144, 520 square km), it was the greatest land bargain in U.S. history.

Detailed explanation-2: -The Louisiana Purchase encompassed 530, 000, 000 acres of territory in North America that the United States purchased from France in 1803 for $15 million.

Detailed explanation-3: -In this transaction with France, signed on April 30, 1803, the United States purchased 828, 000 square miles of land west of the Mississippi River for $15 million. For roughly 4 cents an acre, the United States doubled its size, expanding the nation westward.

Detailed explanation-4: -France had just re-taken control of the Louisiana Territory. French explorer Robert Cavelier de La Salle first claimed the Louisiana Territory, which he named for King Louis XIV, during a 1682 canoe expedition down the Mississippi River.