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Date |
Event(s) |
| 1 | 1912 | - 6 Jan 1912: New Mexico becomes the 47th state.
- 14 Feb 1912: Arizona becomes the 48th state.
- 15 Apr 1912: The Titantic sinks in the Atlantic Ocean.
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| 2 | 1913 | - 1913: Henry Ford begins using standardized interchangeable parts and assembly line techniques in his automobile plant. His expanded use of this process revolutionizes American industry.
- 1913—1914: A depression lasts 20 months and into 1914.
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| 3 | 1914 | - 15 Aug 1914: The Panama Canal opens.
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| 4 | 1917 | - 6 Apr 1917: The United States enters World War I.
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| 5 | 1918 | - 31 Mar 1918: The United States adopts Daylight Savings Time.
- 11 Nov 1918: World War I hostilities end.
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| 6 | 1919 | - 11 Dec 1919: James County, Tennessee is absorbed into Hamilton County, Tennessee. James County had dissolved in bankruptcy on April 15, 1919.
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| 7 | 1920 | - 1920—1921: A depression lasts for 18 months and into 1921.
- 1920: United States population — 105,710,620.
- 18 Aug 1920: The Nineteenth Amendment to the United States Constitution is adopted, granting women the right to vote.
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| 8 | 1923 | - 15 Sep 1923: Oklahoma is placed under martial law due to terrorist activities of the Ku Klux Klan.
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| 9 | 1925 | - 10 Jul 1925—21 Jul 1925: The Scopes "Monkey Trial" is held in Dayton, Rhea County, Tennessee.
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| 10 | 1926 | - 2 Jul 1926: Congress creates the Army Air Corps.
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| 11 | 1927 | - 20 May 1927: Charles Lindbergh completes the first transatlantic flight and lands The Spirit of St. Louis in Paris, France at age 25. His flight lasts 33½ hours.
- 6 Oct 1927: The Jazz Singer, the first commercial motion picture with partial sound, is released.
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| 12 | 1929 | - 29 Oct 1929—1933: The stock market crashes. The Great Depression lasts for 42 months and into 1933.
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| 13 | 1930 | - 1930: United States population — 122,775,046.
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| 14 | 1931 | - 1 Sep 1931: The Bank Panic begins.
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| 15 | 1933 | - 4 Mar 1933: Franklin Delano Roosevelt is inaugurated as President of the United States at age 51.
- 12 Mar 1933: President Franklin Delano Roosevelt broadcasts his first radio "fireside chat."
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| 16 | 1935 | - 14 Aug 1935: The Social Security Act is signed into law.
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| 17 | 1937 | - 1937—1938: A depression lasts for 10 months and into 1938.
- 6 May 1937: The Hindenburg dirigible bursts into flames while landing at Lakehurst, Ocean County, New Jersey.
- 2 Jul 1937: Amelia Earhart disappears in a flight over the Pacific Ocean at almost age 40.
- 21 Sep 1937: J.R.R. Tolkien publishes The Hobbit, the prelude to his Lord of the Rings trilogy.
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| 18 | 1938 | - 30 Oct 1938: Orson Welles creates a national panic with his Invasion from Mars radio broadcast at age 23.
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| 19 | 1940 | - 1940: United States population — 131,669,275.
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| 20 | 1941 | - 24 Nov 1941: The United States Supreme Court invalidates the California "Anti-Okie" statute that made it a misdemeanor to bring an indigent non-resident into California. [The statute was primarily targeted against Dust Bowl migrants.]
- 7 Dec 1941: The Japanese bomb Pearl Harbor, Hawaii, drawing the United States into World War II.
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| 21 | 1944 | - 6 Jun 1944: The Allies launch the Normandy Invasion in France to begin the end of World War II.
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| 22 | 1945 | - 12 Apr 1945: President Franklin Delano Roosevelt dies in Warm Springs, Meriwether County, Georgia at age 63.
- 8 May 1945: VE Day is proclaimed.
- 6 Aug 1945: An atom bomb is dropped on Hiroshima, Japan.
- 9 Aug 1945: An atom bomb is dropped on Nagasaki, Japan.
- 2 Sep 1945: VJ Day is proclaimed as the Japanese formally surrender to General Douglas MacArthur on board The Missouri.
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| 23 | 1950 | - 1950: United States population — 150,697,361.
- 1 Jul 1950: United States military forces land in Korea.
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| 24 | 1951 | - 19 Apr 1951: General Douglas MacArthur gives his Old Soldiers Never Die speech to Congress at age 71.
- 21 Jun 1951: CBS makes the first color telecast.
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| 25 | 1953 | - 25 Jul 1953: Armistice is signed in Korea.
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| 26 | 1956 | - 25 Sep 1956: The first transatlantic telephone cable begins operation.
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| 27 | 1957 | - 4 Oct 1957: Russia launches Sputnik 1 into outer space.
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| 28 | 1960 | - 1960: United States population — 179,323,175.
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| 29 | 1962 | - 20 Feb 1962: John H. Glenn, Jr. becomes the first American astronaut to orbit the earth at age 40.
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| 30 | 1963 | - 22 Nov 1963: President John Fitzgerald Kennedy is assassinated in Dallas, Dallas County, Texas at age 46.
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| 31 | 1969 | - 20 Jul 1969: Neal Armstrong takes "one small step for [a] man," becoming the first person to walk on the Moon at almost age 39.
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| 32 | 1970 | - 1970: United States population — 203,302,031.
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| 33 | 1976 | - 20 Jul 1976: Viking I becomes the first spacecraft to make a controlled landing on Mars.
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| 34 | 1980 | - 1980: United States population – 226,545,805.
- 4 Nov 1980: Ronald Reagan is elected to his first term as President of the United States at age 69.
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| 35 | 1986 | - 19 Oct 1986: The Dow Jones Industrial Average drops 508 points.
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| 36 | 1988 | - 14 Dec 1988: The first transatlantic fiber-optic cable begins operation.
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| 37 | 1990 | - 1990: United States population – 248,709,873.
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| 38 | 2000 | - 2000: United States population – 281,421,906.
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| 39 | 2001 | - 11 Sep 2001: Al Qaeda terrorists hijack 3 American commercial airplanes and crash them into the World Trade Center Twin Towers in New York City, New York County, New York and the Pentagon in Washington, D.C. The terrorist hijackers of a 4th commercial airplane are thwarted by the passengers, and the airplane crashes in a field near Somerset, Somerset County, Pennsylvania. At the end of the day, more than 3,000 people have been killed.
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1911 - 2005 (93 years)