Exploration of the Americas Christopher Columbus Colonization of New World B.F.s Albany Plan of Union The Boston Massacre The Boston Tea Party Revolutionary War Midnight Ride of Paul Revere Constitutional Convention Early Republic Late 1700s to Early 1800s Second Great Awakening Early 1800s Expansion 1800s Louisiana Purchase 1803 Monroe Doctrine Manifest Destiny 1840s U.S. Civil War Period Miscellaneous