"This important crop plant arrived in the southwestern United States by 4,000 years ago, and reached eastern North America at about 200 B.C." the post reads. Some Thanksgiving foods have a more recent history than turkey. Cranberry sauce, for example ...

The turkeys at Troll Bridge Farm are pasture-raised, and Lisa Skillman, who runs the farm with her husband and four of their six children, said she works hard to keep the birds as natural as possible.

The nostalgia-fueled production has been the most-watched entertainment program in the United States for the past three years, ahead of the Oscars and the World Series.

There's no specific threat to the biggest Thanksgiving celebration in the country, but authorities from the NYPD up to the federal government are on alert.