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Thanksgiving was declared on the last Thursday in November by President Abraham Lincoln in 1863 and changed to fourth Thursday in November by President Franklin Roosevelt.

Thanksgiving is a holiday in United State and Canada which celebrate the harvest and other blessings of the past year. It is believed that Thanksgiving is fashioned from the 1621 harvest feast shared by the English colonists (Pilgrims) of Plymouth and the Wampanoag people. George Washington declared Thursday, November 26, as a day of public thanksgiving, but, in the following years the holiday varied informally from month to month and date to date. However, President Abraham Lincoln declared the last Thursday in November as Thanksgiving. During the Civil War, Lincoln believed that Thanksgiving may unite the divided country. Hence, he declared it a national holiday in 1863 and kept Thanksgiving as the last Thursday in November. Future presidents followed Lincoln's example but in 1939, President Franklin Roosevelt declared November's fourth Thursday as Thanksgiving.

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