10 years ago, a simple photograph of a dress sparked a global debate unlike anything seen online before. Posted in 2015, the image caused people to argue intensely over whether the dress Mystery behind 'The Dress' revealed UrbanGeekz ELI5:Why does this dress appear white gold to some people and black blue to others? : r explainlikeimfive The dress was black and blue, but the conditions of the photograph caused many to perceive it as white and gold, creating debate. Within a week, more than ten million tweets had