The first was held in 1621 and celebrated ?

Yes
1621The English colonists we call Pilgrims celebrated days of thanksgiving as part of their religion. But these were days of prayer, not days of feasting. Our national holiday really stems from the feast held in the autumn of 1621 by the Pilgrims and the Wampanoag to celebrate the colony's first successful harvest.

Hello!

Yes!

In November 1621, after the Pilgrims' first corn harvest proved successful, Governor William Bradford organized a celebratory feast and invited a group of the fledgling colony's Native American allies, including the Wampanoag chief Massasoit.

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