US History
Interactive US timeline
An interactive timeline from 1773 to 1997. A simple, low clutter graphic with links to information about every president and major events in US history. Includes audio, photos and other primary sources. It's a quick overview of US history, not a comprehensive curriculum, but could be useful as jumping off point, or a quick reference. Appropriate for upper elementary and older.
US History at Hippocampus- Free Units, Lessons, and Complete Curricula
Geared for high school and AP level students, this free resource has online multimedia lessons. Choose topics or units, or follow an entire course. The courses include: US History I for AP, US History II for AP, US History I, and US History II. Ideal for high school home