Who's that stepping on Plymouth Rock? By ABineham Dec 22, 1620 When the Pilgrims came to America Period: Dec 22, 1620 to Dec 22, 2020 Plymouth Rock Jun 18, 1741 The Pilgrims made a big fuss of building over Plymouth Rock May 5, 1769 The first comers celebrated the anniverisary of The Landing Dec 22, 1774 Strong men and their tools and oxen to move the rock Jan 1, 1834 The Pilgrims Decided to move the rock in Front of Pilgrim Hall Mar 7, 1880 They moved the upper part of the rock to the bottem part and cemented it together Dec 22, 1920 The 300th Anniversary of Forefathers Day Dec 22, 2020 The 400th anniversary of Fourfathers day