U.S. History Primary Source Timeline Explore important topics and moments in U.S. history through historical primary sources from the Library of Congress Colonial Settlement, 1600s - 1763 The American Revolution, 1763 - 1783 The New Nation, 1783 - 1815 National Expansion and Reform, 1815 - 1880 Civil War and Reconstruction, 1861-1877 Rise of Industrial America, 1876-1900 Progressive Era to New Era, 1900-1929 Great Depression and World War II, 1929-1945 The Post War United States, 1945-1968