USA HISTORY

Detailed explanation-1: -Westward expansion began in earnest in 1803. Thomas Jefferson negotiated a treaty with France in which the United States paid France $15 million for the Louisiana Territory – 828, 000 square miles of land west of the Mississippi River – effectively doubling the size of the young nation.

Detailed explanation-2: -The Gadsden Purchase, or Treaty, was an agreement between the United States and Mexico, finalized in 1854, in which the United States agreed to pay Mexico $10 million for a 29, 670 square mile portion of Mexico that later became part of Arizona and New Mexico.

Detailed explanation-3: -The United States first major land purchase and settlement was The Louisiana Purchase in 1803, which the U.S. bought over 828, 000 square miles of land from France for $15 million. The Louisiana Purchase doubled the size of the United States.

Detailed explanation-4: -In the 1840’s, the American West was sparsely occupied. The largest groups of residents included Native Americans, who lived throughout the region, and Spanish-speaking settlers, who were dominant in the Southwest.