Gilder Lehrman Institute of American History
Gilder Lehrman Institute: History Now: The Progressive Era to the New Era 1900 1929, World War I
[Free Registration/Login Required] Learn about World War I from the primary source documents contained here. Also contains a short overview, lesson plans, timelines, maps, and images, as well as recommended videos, books, and other...
PBS
Pbs: The Great War: Interactive Timeline
This site has an interactive timeline of World War I. Choose a year to see important events listed chronologically. You can click on battles and names of famous people to read accompanying thoughts of historians.