In 1623, just two years after Native Americans and Pilgrims dined together at the first Thanksgiving, Pilgrim commander Myles Standish decapitated an enemy Indian chieftain and impaled his head on a pike outside of the Plymouth fort.
That's the part we typically omit from our Thanksgiving myth, which emphasizes interracial harmony instead of violence. And we certainly don't like to remember that our forefathers practiced beheading, especially when we're faced with an enemy that still engages in it.
After two American journalists were beheaded by ISIL fighters, President Obama vowed to dismantle the organization, and he has joined with five Arab allies to launch airstrikes on ISIL targets.
But one of our allies, Saudi Arabia, still practices beheading. So does the Free Syrian Army, which Obama pledged to assist in its battle to unseat dictator Bashar Assad. Unlike Assad's "extremist" foes, the argument goes, the Free Syrian Army is a "moderate" force. But it still beheaded six captives in September.
Beheading is as old as human civilization itself. So it also reminds us how close we remain to savagery, which is what makes decapitation so repulsive and alluring at the same time. We don't want to behold our own brutal natures. But we also can't look away, as the millions of YouTube hits illustrate.
The ancient Celts hung enemies' severed heads from horses' necks or nailed them to the front of their homes. The heads of important rival leaders were preserved in cedar oil and displayed to admiring guests.
To the conquering Romans, such rituals marked the Celts as uncivilized. But that gave the Romans license to behead Celts, who allegedly lay so far outside of human decency that its norms did not apply to them.
With the rise of nation-states, meanwhile, beheading became a force of political repression as well as revolution. As Scottish nationalists reminded voters in the recent failed referendum for independence, English monarchs routinely beheaded Irish and Scottish challengers to their rule. But in 1649, King Charles I was himself beheaded. By decapitating the sovereign head of state, the people proclaimed their own sovereignty.