9/23- U3 Timeline By Yorick11 Dec 2, 1823 Monroe Doctrine Slide 1 Monroe Doctrine Oct 18, 1867 Annexation of Alaska Slide 2 Annexation of Alaska Oct 1, 1890 McKinley Tariff Slide 3 McKinley Tariff Feb 15, 1898 Sinking of the Maine Slide 4 Sinking of the Maine Apr 20, 1898 Teller Amendment Slide 5 Teller Amendment Jul 7, 1898 Annexation of Hawaii Slide 6 Annexation of Hawaii Aug 21, 1898 Spanish-American War Slide 7 Spanish-American War Sep 6, 1899 Open Door Notes Slide 8 Open Door Notes Nov 2, 1899 Boxer Rebellion Slide 9 Boxer Rebellion Dec 6, 1904 Roosevelt Corollary Slide 10 Roosevelt Corollary Aug 15, 1914 Panama Canal Slide 11 Panama Canal
