The World History Project - Welcome to the World History Project. This organization is dedicated to making a free, open-content, standardized textbook on World History based on the AP World History Standard.
World History: The Khan Academy - Our mission is to provide a free, world-class education to anyone, anywhere. World history, from the origins of humans and early societies to the present.
Ancient History Encyclopedia - Our mission is to improve history education worldwide by creating the most complete, freely accessible and reliable history resource in the world.
InfoPlease World History Timeline - Check out the 100 Most Significant Events of the Last Thousand Years, an ancient history timeline, world history timelines and more.
Becoming Human - Through research, education, and the sponsorship of scholarly interaction, IHO advances scientific understanding of our origins and its contemporary relevance.
U.S. History and Historical Documents - The history of the United States is vast and complex, but can be broken down into moments and time periods that divided, unified, and changed the United States into the country it is today.
U.S. History.org - mission to educate the public about the Revolutionary and Colonial eras of American history.
Revolutionary War 101 - NO LONGER EXISTS? Online primer on the American Revolutionary War. Includes battles, campaigns, and war records.
AP U.S. History Study Guide from the Gilder Lehrman Institute - Begin your journey through US history with the videos, timelines, primary sources, and essays.
U.S. History - In 48 video episodes, John Green will teach you the history of the United States of America! This course is based off of the 2013 AP US History curriculum.