The origins of the watermelon stereotype. The all black people like watermelon and are trying to show that this girl loves it.
Watermelon: Symbolizing the Supposed Simplicity of Slaves - Sociological Images
vintage everyday: Racism Has a Long History in Advertising. Here are 15 Shockingly Racist Vintage Ads
watermelon stereotype and racism (history and stats) -- this picture makes me angry.