America Builds An Empire By anthonylemus5 Mar 30, 1867 Purchase of Alaska Period: Mar 30, 1867 to Jan 1, 1950 america builds an empire Jan 1, 1890 Yellow Journalism Jan 16, 1893 Takeover in Hawaii Jan 1, 1898 The Spanish American War Jul 1, 1898 Teddy Roosevelt & the Rough Riders Jan 1, 1899 Open Door Policy in China Apr 11, 1899 America claims Guam, the Philippines, Puerto Rico Nov 2, 1899 The Boxer Rebellion Nov 18, 1900 The Anti-Imperialist League Jan 1, 1905 Roosevelt's Big Stick Diplomacy Jan 1, 1915 The Mexican Revolution Jan 1, 1917 America Claims Neutrality at the start of WWI Apr 2, 1917 America Joins WWI Jan 8, 1918 Woodrow Wilson's 14 Points Jan 1, 1945 America gets involved with: Venezuela, Nicaragua, Panama