History Timelines
(Alternatime) History Matters Designed for high school teachers of
U.S. history courses. A gateway for web resources and other useful
materials for teaching U.S. history.
American Memory
Primary source material from the collection of the Library of Congress.
The Gilder Lehrman
Institute of American History promotes the study and love of
American history. The site contains thousands of digital artifacts
related to American history and over a dozen lesson modules