what are some of the myths of the First Thanksgiving? What are some of the truths?

Loewen opens "The Truth about the First Thanksgiving" with disappointment that students never suggest 30,000 BCE as when the current US is first settled, but 1620. This shows that the Thanksgiving myth, the mythic origin of the nation, is all that matters. Students recall the religious persecution of the Pilgrims in England, the Mayflower Compact as a forerunner to the Constitution, and Squanto helping the Pilgrims to survive - but nothing about a plague.