Final Timeline Project By abaccari 1864 Sand Creek Massacre 1865 Ratification of the Thirteenth Amendment 1865 Reconstruction Era 1868 Ratification of Fourteenth Amendment 1869 Completion of Transcontinental Railroad 1870 Ratification of Fifteenth Amendment 1870 The Gilded Age 1877 The Great Railroad Strike of 1877 1890 The Progressive Era 1898 Spanish-American War 1914 World War I 1920 Prohibition Era 1929 The Stock Market Crash of 1929 1929 Great Depression 1933 The New Deal 1939 World War II 1945 Atomic Bombings of Hiroshima and Nagasaki 1947 Cold War Era 1954 Brown v. Board of Education 1955 The Montgomery Bus Boycott