U.S. History: 1887-2008 By Katherine.Benik Period: 1776 to 1860 Early American History 1- 2- 3- 4- 5- Jul 4, 1776 Declaration of Independence Signed Dec 15, 1791 Bill of Rights Ratified Period: 1860 to 1877 Civil War/Reconstruction 1869 Transcontinental Railroad Completed 1876 Telephone Invented By Alexander Graham Period: 1877 to 1900 The Gilded Age 1- Rockefeller/Carnegie (Captain of Industry vs. Robber Barons) 2- Philanthropy 3- Monopoly 4- Jane Adams 5- Laissez-Faire 1889 Hull House Founded Period: 1890 to 1920 The Progressive Era Period: 1898 to 1910 Imperialism Period: 1914 to 1918 World War 1 Period: 1920 to 1929 Roaring Twenties Period: 1929 to 1939 The Great Depression Period: 1939 to 1945 World War 2 Period: 1945 to 1960 Early Cold War Period: 1950 to 1970 Civil Rights Era Period: 1954 to 1976 Vietnam War Period: 1970 to 1971 End of Cold War Sep 17, 1987 Constitution Written Period: 1990 to 2008 1990s- 21st Century