25 Little Known Facts About Thanksgiving - mental_floss on YouTube (Ep. 36). A good video for those holiday half days. Could be used for upper middle school and high school (depending on the situation).
7 Surprising Facts About Thanksgiving. There are certain givens on Thanksgiving — lots of food, football on TV and the need for elastic waistband pants, for starters — however, there are some facts about the holiday that may surprise you.
13 Surprising Facts About Your Thanksgiving Groceries