1865-1898 By Thy Period: 1865 to 1877 Reconstruction Era 1867 Alaska is bought from Russia Jul 28, 1868 14th Amendment ratified by states 1870 Industrialization begins Ends 1910 Feb 3, 1870 15th Amendment ratified by states 1882 Chinese Exclusion Act 1890 Progressive Era begins Ends 1920 1894 Pullman Strike