What important thing happened in America in 1621?

Answer:
In 1621 the Plymouth colonists and Wampanoag Indians shared an autumn harvest feast which is acknowledged today as one of the first Thanksgiving celebrations in the colonies. For more than two centuries, days of thanksgiving were celebrated by individual colonies and states.
First answer by Tvaholic88. Last edit by Jonathan Begg. Contributor trust: 152 [recommend contributor recommended]. Question popularity: 1 [recommend question].