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Date |
Event(s) |
| 1 | 1917 | - 6 Apr 1917—11 Nov 1918: World War I
Duration of America's contribution to World War I
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| 2 | 1929 | - Aug 1929—1939: Great Depression
Duration of the American Great Depression
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| 3 | 1930 | - 22 Jan 1930—1 May 1931: Construction of the Empire State Building
Duration of official construction and opening of the Empire State Building in new York City, New York
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| 4 | 1941 | - 7 Dec 1941—2 Sep 1945: World War II
Duration of America's contribution to World War II
- 7 Dec 1941: Japanese Attack on Pearl harbor
Date the japanese attacked Pearl Harbor, "A Day That Shall Live in Infamy." Start of America's entry into World War II
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| 5 | 1947 | - 1 Jan 1947: Canadian Citizenship Act
The Canadian Citizenship Act, 1946 comes into force creating a new, separate, Canadian legal citizenship for all British subjects born, raised, or resident in Canada and automatic citizenship for all those born in Canada after this date.
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| 6 | 1950 | - 25 Jun 1950—27 Jul 1953: Korean War
Duration of America's involvement in the Korean War
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| 7 | 1955 | - 1 Nov 1955—27 Jan 1973: Vietnam War
Duration of America's involvement in the Vietnam War (Second Indochina War)
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| 8 | 1956 | - 26 Jul 1956: Sinking of the Andria Doria
The date the Italian ocean lilner Andria Doria sank off Nantucket, Massachusetts
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| 9 | 1959 | - 3 Jan 1959: Alaska Becomes 49th State
Offical date that Alaska becomes the 49th State of the United States
- 21 Aug 1959: Hawaii Becomes 50th US State
Official date Hawaii becomes the 50th State of the United States
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| 10 | 1961 | - 1961: Oral Polio Vaccine Introduced
The year the oral polio vaccine came into commercial use
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| 11 | 1963 | - 22 Nov 1963: Assassination of John F Kennedy
Date President John F Kennedy was assassinated
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| 12 | 1968 | - 4 Apr 1968: Assassination of Martin Luther King Jr.
Date Martin Luther King Jr. assassinated
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| 13 | 1969 | - 20 Jul 1969: First Moon Landing
Commander Neil Armstrong and lunar module pilot Buzz Aldrin formed the American crew that landed the Apollo Lunar Module Eagle on July 20, 1969, at 20:17 UTC.
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1916 - 1984 (67 years)