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 Tumblr Dress Debate Black and Blue Versus Gold and White Glamour 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, The Dress Debate SETTLED: Black And Blue Or White And Gold? TODAY