Black Americans whose families go back far enough have substantial Native American ancestry, actually, having been treated similarly as an underclass during the

Black Americans whose families go back far enough have substantial Native American ancestry, actually, having been treated similarly as an underclass during the early years of English/Dutch colonization of North America. It's harder to find connections because of anti-miscegenation and one-drop rule laws and customs, and the relative nascence of reliable genetic testing (which themselves may be misleading due to their reliance on statistical proximity to controls).