Thanksgiving Day is an annual national holiday in the United States and Canada celebrated in late November with feasts and giving of thanks for the harvest. The modern Thanksgiving tradition began in the 17th century with the Plymouth colonists sharing a feast with the Wampanoag tribe, though the date and celebration has varied until being set by federal legislation in 1941 as the fourth Thursday of November. Today it is primarily celebrated as a secular holiday with families sharing traditional foods like turkey, squash, and pumpkin pie.