My Timeline By Fdcjr Feb 15, 1898 Maine explodes and ignites the war. Maine explodes and ignites the war. Jun 12, 1898 Philippines becomes a U.S. territory May 9, 1900 Early 1900s Immigrants from Southern and Eastern Europe pour into U.S. cities Feb 12, 1910 NAACP is founded Aug 18, 1920 Womens vote becomes constitutional right Jun 2, 1924 Indians become U.S. citizens Oct 29, 1929 Great Depression begins