Need a list of presidents? How about a map of the world? Check out these history and demographic resources.

History
Best of History
EuroDocs Online source for European history
University of Oklahoma College of Law Chronology of US historical documents
The American Presidency Project Documents related to the study of the Presidency
BBC News History, economy, and politics of countries and territories
Chronicling America Historic American Newspapers
Edsitement Lesson plans and websites on History & Social Studies

Geography
U.S. Department of State Facts about the land, people, history, government, political conditions, economy, and foreign relations of independent states, some dependencies, and areas of special sovereignty
World Gazetteer Comprehensive set of population data and related statistics
Population Reference Bureau Population trends and related topics, including aging, education, health, poverty, marriage and ethnicity
Tourism Offices Worldwide Directory Guide to government tourism offices, convention and visitors bureaus, chambers of commerce, and similar organizations that provide free, accurate, and unbiased travel information to the public