Documents organized by Era of History COLONIZATION REVOLUTION/DECLARATION OF INDEPENDENCE CREATION OF THE CONSTITUTION EARLY REPUBLIC AGE OF JACKSON WESTWARD EXPANSION REFORM MOVEMENTS SECTIONALISM CIVIL WAR / RECONSTRUCTION GILDED AGE U.S. BECOMES A WORLD POWER PROGRESSIVE ERA THE ROARING 20's GREAT DEPRESSION / NEW DEAL WORLD WAR II COLD WAR AMERICAN CIVIL RIGHTS MOVEMENT CONTEMPORARY AMERICA