1820 to 1920 imperialism By paigefoust28 Period: Mar 3, 1820 to Mar 3, 1920 imperialism Mar 3, 1821 mexican revolution Mar 3, 1850 european trade with africa Mar 3, 1879 zulu Mar 3, 1885 our country Mar 3, 1887 india and the seopy rebelian Mar 3, 1889 borlin Mar 3, 1899 boxer rebelian Mar 3, 1901 austrian