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lasted until 1763
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Declared on July 2, 1776. Approved by congress July 4, 1776. Signed on august 2, 1776.
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Lasted until October 19, 1781
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Lasted until March 23, 1815
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lasted until December 2, 1828
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ended in 1843
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ended in 1839
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developed in the 1830s and 1840s
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Ended February 2, 1848
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Ended on April 14, 1861
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On September 22,1862 a preliminary Emancipation Proclamation was issued (after the battle at Antietam).
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They were adopted between 1865 and 1870.
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Ended in 1911
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electric light-1879,
telephone-1876,
airplane-1903 -
Ended July 6, 1892
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Ended August 1898
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Won a second term in 1904