I'm not just trying to start a flame war, I promise. I recently found out that Plessy in the famous Plessy V Ferguson was seven eighths white. That Plessy looked looked Caucasian (I heard he basically looked Caucasian). However because one of his great grandparents was African, he was determined to be African. I also know that the children Thomas Jefferson had with Sally Heming were at least three quarters white. Despite being three quarters white, they were still enslaved and even sold. Does that mean you could look basically white and still be a slave in the Antebellum South? Could they say "Sorry, I know you have blond hair, blue eyes, and skin paler than the moon but one of your great, great grandparents was black so you're a slave."