The First Thanksgiving By km00elementary Sep 21, 1620 Pilgrims leave for Plymouth Nov 9, 1620 The Pilgrims arrive May 21, 1621 Winter led to many deaths Jul 21, 1621 The Pilgrims began harvesting the land Oct 4, 1621 The first Thanksgiving For the first harvest, the Pilgrims celebrated the first Thanksgiving in October.
