1913 On February 3, the Sixteenth Amendment to the Constitution, creating the federal income tax, becomes law with its ratification by New Mexico.Timeline State: New MexicoTimeline Country: United StatesTimeline Subjects: constitutional amendmentsEra: 1901-2000 Read more about 1913
1912 On February 14, Arizona becomes the forty-eighth state.Timeline State: ArizonaTimeline Country: United StatesTimeline Subjects: statehoodEra: 1901-2000 Read more about 1912
1912 On January 6, New Mexico becomes the forty-seventh state.Timeline State: New MexicoTimeline Country: United StatesTimeline Subjects: statehoodEra: 1901-2000 Read more about 1912
1911 California's male voters grants woman suffrage by referendum on October 10.Timeline State: CaliforniaTimeline Country: United StatesTimeline Subjects: women's rightsEra: 1901-2000 Read more about 1911
1915 The Lusitania is torpedoed and sunk by a German U-boat in the North Atlantic on May 7.Timeline State: N.A.Timeline Country: United StatesTimeline Subjects: international affairsEra: 1901-2000 Read more about 1915
1914 The Clayton Anti-Trust Act is passed by Congress on October 8.Timeline State: District of ColumbiaTimeline Country: United StatesTimeline Subjects: the economyEra: 1901-2000 Read more about 1914
1914 The Federal Trade Commission is established on September 26. Timeline State: District of ColumbiaTimeline Country: United StatesTimeline Subjects: the economyEra: 1901-2000 Read more about 1914
1913 The Federal Reserve Act become law on December 24. Timeline State: District of ColumbiaTimeline Country: United StatesTimeline Subjects: the economyEra: 1901-2000 Read more about 1913
1912 On November 5, Arizona, Kansas, and Oregon grant woman suffrage by referendum.Timeline State: N.A.Timeline Country: United StatesTimeline Subjects: women's rightsEra: 1901-2000 Read more about 1912
1912 On November 5, Woodrow Wilson of New Jersey is elected the twenty-eight President of the U.S. Timeline State: New JerseyTimeline Country: United StatesTimeline Subjects: politicsEra: 1901-2000 Read more about 1912