This is a must for the essential primary documents in US.
Part of the American Experience Series on World War I. Lots of visuals and captivating articles on this site.
This IS the definitive site for all things American history. Primary source documents, photos, art, newspapers and nearly any kind of archival resources you would ever need!
"Explore 897,505 items digitized from The New York Public Library's collections. This site is a living database with new materials added every day, featuring prints, photographs, maps, manuscripts, streaming video, and more." (source: NPL)
"Discover biographies of more than 19,000 men and women — from all eras and walks of life — whose lives have shaped American history and culture." (source: ANB.org)
Understand the importance of geographical relationships between various nations/states. Includes many printable maps.