Spanish American War By Gepu1945 Mar 4, 1897 William Mc Kinley becomes President Feb 15, 1898 USS Maine Explosion!!! Kills 260 sailors Feb 16, 1898 Yellow Journalism reports Spanish are to Blame- REMEMBER THE MAINE! Feb 23, 1898 Asstiant Secretary of the Navy Theodore Roosevelt sends Commocore George Dewy to Philippine Islands Feb 27, 1898 Theodore Roosevelt resigns as Asst. Sec. of Navy to form an all volunteer regiment of cavalry - the Rough Riders May 1, 1898 Commodore Dewey destroys the Spanish fleet in Manilla Bay , Philippines.