Google celebrates the 40th birthday of the Rubik’s Cube on Monday (May 19) with one of its Doodles, the spontaneous changes that are made to the Google logo.
The Rubik’s Cube was created in the spring of 1974 by Hungarian sculptor and architecture professor Erno Rubik, when he spent weeks trying to solve his own invention. The very next year, he applied for a patent, which was approved in 1977. Then, in 1980, landed a deal with a toy company and it exploded in popularity. 40 years later, he’s considered one of the best-selling toys ever.
“It was wonderful to see how, after only a few turns, the colors became mixed, apparently in random fashion,” Rubik, a 29-year-old when he invented the Cube, once said. “It was tremendously satisfying to watch this color parade.”
Visit Google’s homepage to catch the Doodle.