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"In fact, independence was formally declared on July 2, 1776, a date that John Adams believed would be “the most memorable epocha in the history of America.” On July 4, 1776, Congress approved the final text of the Declaration. It wasn't signed until August 2, 1776."
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"The modern mechanical cotton gin was invented in the United States of America in 1793 by Eli Whitney (1765–1825). Whitney applied for a patent on October 28, 1793; the patent was granted on March 14, 1794, but was not validated until 1807."
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