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The proclamation was approved on July 4th, 1776 by the US 13 British colonies
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It started on September 16, 1810, with the "Grito de Dolores", and ended on September 27, 1821, when the "Ejercito Trigarante" entered Mexico City.
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It was a war between the United States and 11 Southern states of the country, it started on April 12, 1861, and ended on April 9, 1865
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The unification of Germany was a historical process that took place between 1815 and 1871