Period 6 By benab01 Period: 1861 to 1865 Civil War 1863 Standard Oil Company Funded 1865 Black Codes passed 1865 Ratification of the 13th Amendment Period: 1865 to 1872 Freedmen's Bureau 1868 Ratification of the 14th Amendment 1870 Ratification of the 15th Amendment 1873 Panic of 1873 Period: 1876 to 1881 Great Sioux War 1877 Great Railroad Strike of 1877 1882 Chinese Exclusion Act 1886 Haymarket Square Bombing 1887 Interstate Commerce Act 1889 The Gospel of Wealth by Andrew Carnegie 1890 McKinley Tariff 1890 Sherman Anti-Trust Act 1892 Populist (People's) Party 1893 Panic of 1893 1896 Plessy v. Ferguson 1898 Spanish-American War 1898 Teller Amendment 1898 Hawaii annexed 1898 Treaty of Paris 1898 Williams v. Mississippi