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The Frontier Begins
Just after the Revolutionary War, the United States gained official control over the land west of the Appalachians. -
Louisiana Purchase
In 1803, the United States purchased approximately 827,000 square miles of land from France for $15,000,000. -
Lewis and Clark
Lewis and Clark begin their expedition to explore land acquired by the Louisiana Purchase. Officially titled the Corps of Discovery. -
Missouri Admitted As 24th State
In 1821, Missouri was admitted into the United States of America as the 24th state. -
U.S. Declares War on Mexico
James K. Polk announces war upon Mexico. -
Arthur Tait
"A Tight Fix -- Bear Hunting, Early Winter (The Life of a Hunter: A Tight Fix) This painting was created in 1856 by Arthur Fitzwilliam Tait. -
Jasper Francis Cropsey
Backwoods America Jasper Francis Cropsey painted this western scene in 1858. -
Albert Bierstadt
Indian Encampment, Late Afternoon Painted in 1862 by Albert Bierstadt. -
Yellowstone: 1st National Park
