Imperialism Timelin By 14rrowle Jul 6, 1858 Japan opens trade with the U.S. Mar 30, 1867 Seward's Purchase of Alaska Apr 19, 1898 Teller Amendment The Teller Amendment was enacted. Apr 25, 1898 Spanish-American War Jul 6, 1898 Annexation of Hawaii Jun 6, 1900 Boxer Rebellion Mar 2, 1901 Platt Amendment Mar 2, 1901 Platt Amendment Sep 14, 1901 Teddy Roosevelt become President May 4, 1904 Panama Canal construction begins Mar 4, 1909 William Taft become President William Taft starts his term as the 27th President. Aug 14, 1914 The Panma Canal is completed
