User blog comment:MrScience12/Happy Thanksgiving!/@comment-15629929-20131129171741/@comment-5917948-20131129175509

Pretty much, way back in the 15th-or-so century, some guys called Pilgrims came over to what is now Plymouth, Massachusetts. They met Native Americans who taught the Pilgrims about corn and planting and all that stuff and helped them survive. So, eventually, they make a feast out of their harvest and give thanks. Or at least that's what I've heard. Some way or another, they add turkey to the menu eventually. :P