Royalty Free photo: Woman wearing blue floral sleeveless dress PickPik 4,285 Princess Blue Dress Stock Vectors and Vector Art Shutterstock 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 Ten years ago, a photo of a dress posted on Tumblr sparked a massive debate: was it blue and black or white and gold? Millions argued online, and even celebrities joined in. Scientists later explained