Forefathers' Day is a holiday celebrated in Plymouth, Massachusetts, on December 22 . It is a commemoration of the landing of the Pilgrim Fathers in Plymouth, Massachusetts, on December 21, 1620. It was introduced in Plymouth, Massachusetts, in 1769.[1] In adjusting the date to the Gregorian calendar, the anniversary was erroneously established on December 22 instead of December 21.[2]
Forefathers' Day is a well known and well celebrated holiday in Plymouth.