When I was a child, Thanksgiving was simple. It was about turkey and dressing, love and laughter, a time for the family to gather around a feast and be thankful for the year that had passed and be hopeful for the year to come. In school, the story we learned was simple, too: Pilgrims and Native Americans came together to give thanks. [SNIP] As Peter C. Mancall, a professor at the University of Southern California, wrote for CNN on Wednesday, Gov. William Bradford would say in his book “Of Plymouth Plantation,” which he began to write in 1630, that the...