The world's most famous optical illusion turns 10 years old Creative Bloq Navy Blue Long Prom Dress with Gold Sequins PromGirl Is That Dress White and Gold or Blue and Black? The New York Times Optical illusion renews blue and black dress debate nine years on Express.co.uk Eleven years ago, a single photo posted on Tumblr sparked one of the biggest internet debates of all time. The dress instantly divided the world, some swore it was white and gold,