The Adams-Onís Treaty of 1819 resolved territorial disputes between the United States and Spain, leading to the acquisition of Florida and the establishment of the western boundary of the United States.
The Homestead Act (1862) Explained
The Homestead Act of 1862 granted free land to settlers in the United States, encouraging westward expansion and the development of agriculture.
The Gadsden Purchase (1853) Explained
The Gadsden Purchase was a treaty between the United States and Mexico in 1853 that resulted in the acquisition of a strip of land in present-day Arizona and New Mexico.
Louisiana Purchase (1803) Explained
The Louisiana Purchase was a land deal between the United States and France in which the U.S. acquired approximately 828,000 square miles of territory west of the Mississippi River for $15 million.