The Lewis & Clark State Historic Site in Hartford, Illinois, celebrates the Illinois portion of the Lewis & Clark Expedition ...

The brutal and unforgiving American frontier created a different kind of man. These explorers, fur trappers, guides, and ...

In 1803, the U.S. Senate ratified the Louisiana Purchase. In 1818, Canada and the U.S. signed the Convention of London. The treaty established the 49th parallel as the boundary from Rainy River, Ont., ...

Louisiana Purchase State Park in east Arkansas is one ... A treaty with France in 1803 stated the United States would purchase the vast tract of 830,000 square miles for $15 million.

The Papers of Thomas Jefferson, Volume 41: 11 July to 15 November 1803 Thomas Jefferson The Louisiana Purchase dominates the months covered in this volume. Jefferson departs for Monticello to enjoy a ...

Sandwiched between the Louisiana Purchase in 1803 and the Civil War in 1861, the California Gold Rush is considered by many historians to be the most significant event of the first half of the ...

After the Louisiana Purchase of 1803, the Red River served as the boundary between the United States and Mexico, and, after ...

Arkansas’s northern boundary was shaped in 1813 when Arkansas County was formed within the Mississippi Territory. When ...

The United States acquired the land in the Louisiana Purchase from France in 1803 and the U.S. Army began building forts in ...

“It is New Orleans.” The Louisiana Purchase of 1803 eased Jefferson’s concerns about foreign influence, but it didn’t eliminate them. Jefferson believed that America’s future lay in the ...

Marie)—today’s Central Business District. Once news broke about the Louisiana Purchase in 1803, property owners all around ...

Two archaeologists in Platte City, Missouri, have uncovered human pioneer remains from a key period in early American history ...