American History Worksheets (Explorers, Colonies, Revolution, Constitution, and Westward Expansion). Two hundred American history worksheets with 400 printable images. Teach American history through self-guided worksheets, even when you do not have time.Preview is typical of Download. Follow links for full previews. This download bundle is comprised of the following 21 listings:1700's - images1800's - images1900's - images2000's - imagesApollo 11 - sequence the mission through