Would it also surprise you to know that Thanksgiving originated in Canada? It was celebrated by the Martin Frobisher expedition when they arrived at Labrador, which is the northern part of Newfoundland. They shared food they had brought with them with the friendly and curious Inuit people - boiled salt meat and boiled dried peas. Today, some form of that is still served in Newfoundland as a celebratory meal at any time of year and it's called a Jigg's Dinner. I'm not sure when Turkey became a thing.
P.S. I recently visited Plymouth Rock, The Mayflower II and Patuxet during a trip to Boston. It was very interesting and the historical reenactments at the sites were very well done, including a role-play of Thanksgiving between the residents of Plymouth Plantation and the Village.
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