Thanksgiving is celebrated on the fourth Thursday in November. It commemorates the 1621 harvest feast shared between the English Pilgrims and Wampanoag Native Americans. The Pilgrims fled religious persecution and arrived on the Mayflower in 1620. They invited the Wampanoag to a three-day feast to celebrate the autumn harvest after their first crop was successful. Today, Thanksgiving is a time for families to gather, enjoy a meal of turkey and other foods, and give thanks for what they have.