‘Race Is a Social Construct, Scientists Argue’, Megan Gannon, 04 February 2016, livescience.com

“More than 100 years ago, American sociologist W.E.B. Du Bois was concerned that race was being used as a biological explanation for what he understood to be social and cultural differences between different populations of people. He spoke out against the idea of “white” and “black” as discrete groups, claiming that these distinctions ignored the scope of human diversity.