1917 The United States enters World War I on April 6.Timeline State: N.A.Timeline Country: United StatesTimeline Subjects: warEra: 1901-2000 Read more about 1917
1914 On November 3, Montana and Nevada grant women the right to vote with approvals of new constitutions.Timeline State: N.A.Timeline Country: United StatesTimeline Subjects: women's rightsEra: 1901-2000 Read more about 1914
1914 World War I begins in Europe on July 28.Timeline State: N.A.Timeline Country: N.A.Timeline Subjects: warEra: 1901-2000 Read more about 1914
1914 On April 21, U.S. troops land in Veracruz, Mexico, beginning a six-month occupation.Timeline State: N.A.Timeline Country: MexicoTimeline Subjects: international affairsEra: 1901-2000 Read more about 1914
1915 U.S. Marines are sent to Haiti on July 28. The Marines will occupy that nation until 1934.Timeline State: N.A.Timeline Country: HaitiTimeline Subjects: international affairsEra: 1901-2000 Read more about 1915
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
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 U.S. Marines land in Nicaragua on August 14. They will remain there until 1925.Timeline State: N.A.Timeline Country: NicaraguaTimeline Subjects: international affairsEra: 1901-2000 Read more about 1912
1911 The Chinese Revolution begins on October 10.Timeline State: N.A.Timeline Country: ChinaTimeline Subjects: international affairsEra: 1901-2000 Read more about 1911
1910 The Mexican Revolution begins on November 20. It will continue for the next decade and over one million Mexicans will die in the military and political violence.Timeline State: N.A.Timeline Country: MexicoTimeline Subjects: international affairsEra: 1901-2000 Read more about 1910
