For context, I have had three distinct, dotted marks on my right hand since birth. My ancestry is approximately 70% Native American, 25% European, and 5% African. My grandmother, who was of Afro-Mayan ancestry, had a similar mark on her left thigh. I remember her pointing out the resemblance when I was about twelve years old. That was as far as our conversation ever went, and unfortunately, she has since passed away. Even so, that brief exchange has remained with me, taking on a significance...