Find out what the Pilgrims really ate at the first Thanksgiving dinner. Interactive investigation of the first Thanksgiving: What really happened? Abraham Lincoln's proclamation making the last Thursday of November a day of Thanksgiving. Plimoth Plantation: The Living History Museum of 17th Century Plimoth Expressing gratitude in different languages Follow the history of Thanksgiving through the years Learn how the evolution of the American Thanksgiving Day holiday took place over a long period of time. Bring history to life as students explore "The First Thanksgiving" learning adventure. Learn all about the Pilgrims.