From site: 

This Web site is brought to you from the Library of Congress in Washington, D.C., the largest library in the world and the nation’s library… The site was designed especially with young people in mind, but there are great stories for people of all ages, and we hope children and their families will want to explore this site together.

Here, you can discover what Abraham Lincoln had in his pockets on the night he was assassinated. (You will be surprised.) Or you can read about other “Amazing Americans” such as Buffalo Bill Cody and his “Wild West” show; the heroism of Harriet Tubman, who helped many slaves escape bondage; the music of jazz great Duke Ellington; or the inventions of Thomas Edison. (You will even be able to see his first motion picture!)

This website provides information on the battles, people, events, timeline, and primary source documents of the U.S. Revolutionary War.  There are also recommended readings and a message board and chat room for further perspectives on the war.

The NPS offers educational resources for historic events that took place in US National Parks.  Teachers can filter the content by grade level to find lesson plans and related activities.

Here you’ll find an online interactive multimedia history of the United States from the Revolution to the present.  Accompanying it are primary source documents, the perspectives of major ethnic groups, and a series of inquiry-based exploration modules on different time periods in American history. There’s also an extensive reference section with links to other resource websites.

This interactive site is based on the PBS series,  Colonial House.  In these interactives you can view panoramic 360-degree views of a colony and its buildings, dress up as a colonist, trace a voyage from Europe to the New World, look at where colonists and Native Americans were on a 1628 map of  North America, watch video clips of daily life in the colonies, learn about colonial laws and much more.

Please note, the links to the video clips are outdated. To see the videos, please visit Colonial House on PBS.