Library of Congress
Loc: Thomas Jefferson: The West
This resource explains Jefferson's interest in westward expansion while showing and describing many original documents.
US National Archives
Nara: Charters of Freedom: Westward Expansion: Louisiana Purchase
Primary source material and informational text on the Louisiana Purchase.
White House Historical Association
White House Historical Association: Thomas Jefferson and the Louisiana Territory
Information with lesson plan for grades 9-12 about Thomas Jefferson and the events surrounding his decision to purchase the Louisiana Territory.
OpenStax
Open Stax: Partisan Politics
By reading this section of a chapter on "The New Republic", students will be able to identify key examples of partisan wrangling between the Federalists and Democratic-Republicans, describe how foreign relations affected American...
PBS
Pbs: Events in the West: 1800 1820
A comprehensive site on the development and history of the American West. In timeline fashion, this page details the events leading up to the Louisiana Purchase and the Lewis and Clark Expedition. It continues with information about...
University of Nebraska
University of Nebraska Lincoln: The Journals of the Lewis and Clark Expedition
Learn about this historic journey to the Pacific Ocean and back through the most extensive collection of journals, images, and audio files. This online collection of full text entries lets you explore the journey through the journals of...
Khan Academy
Khan Academy: Us History: 1800 1848: The Louisiana Purchase and Its Exploration
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.
Digital History
Digital History: Pathfinders
Read a brief description of the Lewis and Clark Expedition and the Pike Expedition which sought to map out the newly acquired Louisiana Territory.
Black Past
Black Past: Louisiana Purchase and African Americans
In this brief encyclopedia article, you find the effect the Louisiana Purchase had on African-Americans because of the new land added to the United States. There is a link to a website that gives additional information about the...