The focus on this first lady’s posterior has historical antecedents. It reaches back to the imagery of Hottentot Venus, a woman from what is now South Africa whose naked body and pronounced posterior were paraded in shows throughout 19th-century Europe. On to the selling and trading of black women’s bodies through slavery. In modern times, black women’s figures continue to be up for public discussion in ways that are celebratory (see: “Brick House” by The Commodores) and insulting.
— Michelle Obama’s posterior again the subject of a public rant - The Washington Post


