Rubik's Cube turns 40.
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The '80s version of Flappy Bird is back—at least for a day, anyway.
In honor of its 40th anniversary, Google has resurrected the Rubik's Cube as a doodle on its home page. The rectangular, productivity-killing 3-D puzzle was first invented in 1974, yet came of age in the early 1980s as people of all ages struggled with infinite permutations.
Invented by Hungarian native Enio Rubik, the iconic cube has remained a mainstay of popular culture. The Rubik's Cube phenomenon went global in its heyday, launching competitive contests and even a short-lived Saturday morning cartoon.
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—By CNBC