Rubik's Cube Celebrates 40 Years

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The Rubik's Cube is celebrating a 40th birthday.

The puzzle was invented in 1974 by Hungarian Architect Erno Rubik.

There are 43 quintillion ways to scramble the cube, according to its website.

It took Rubik a month to figure it out himself.

Google honored the Rubik's cube anniversary with an interactive Google Doodle, where you can try to work the puzzle yourself.