Imperialism Timeline Ben T. By 14btunis Feb 6, 1820 Seward's purchase of Alaska People thought it was a frozen wasteland, turns out there was a bunch of reasources there! Oct 18, 1854 The year Japan opened trade with the U.S. Yesss! Jan 31, 1898 Teller Amendent Feb 6, 1898 Annexation of Hawaii May 28, 1898 Spanish-American War Apr 7, 1899 Boxer Rebelian Jan 7, 1901 Teddy Rosevelt Becomes president Feb 6, 1901 Platt Amendment May 8, 1902 William Taft becomes president Dec 25, 1904 Panama Canal construction begins Christmasssss!!!!! Apr 1, 1914 Panama Canal is opened April fool's day!