Read the story of Antoine du Pratz's History of Louisiana (1774) which was carried by Lewis and Clark on their expedition to serve as a guide for the kind of information Jefferson wanted the expedition to acquire.

Discover the history of awarding peace medals to Indian chiefs. Lewis and Clark carried at least eighty-nine peace medals in five different sizes to be given out on their expedition in the early 1800s.

Features a description and history of Tywappity Bottom where Lewis and Clark arrived in November 1803.

Encyclopedia Britannica provides a biography of Sacagawea (1788-1812), the Native American guide and interpreter on the Lewis and Clark expedition.

The geographical and political history of the west was linked with the process of defining boundaries, ownerships, and histories. Between 1682 and 1912 there was French Louisiana, Spanish Louisiana, back to French Louisiana, then...

In 1803, Jefferson made a controversial decision that effectively doubled the territory of the United States while transgressing his own views of proper presidential authority.