By Joan Holub, Author & Lauren Mortimer, Illustrator. Learn more about the history of the feast that started off as a harvest celebration and has now become a national holiday. After their first harvest in 1621, the Pilgrims at Plymouth shared a three-day feast with their Native American neighbors. Of course, the Pilgrims and the Wampanoag didn’t know it at the time, but they were making history. For ages 8 and up.