How was the Rubik's Cube invented?

The Rubik's Cube was created in 1974 by Ernő Rubik, a Hungarian teacher of design and architecture in Budapest. He wanted a hands-on way to show his students three-dimensional movement and spatial relationships, and he built the first version from wood, rubber bands and paper clips. He applied for a Hungarian patent in 1975, and the puzzle, first called the Magic Cube, reached international markets as the Rubik's Cube in 1980. [1] [2] [3]

According to the [bbc.com](https://www.bbc.com/culture/article/20240126-first-of-all-you-must-be-patient-then-you-need-spatial-memory-ern-rubik-on-his-iconic-invention-the-rubiks-cube) report, Rubik was working as a professor at the Budapest College of Applied Arts in 1974 and wanted something tactile that students could handle, simple to grasp yet containing a problem to solve. He did not set out to make a toy. The [smithsonianmag.com](https://www.smithsonianmag.com/innovation/brief-history-rubiks-cube-180975911/) account says he spent months tinkering with blocks held together by rubber bands, glue and paper clips before arriving at what he called the Bűvös kocka, or Magic Cube. [3] [4]

The first attempt, which linked small cubes by drilling holes and using rubber bands, kept falling apart. Rubik then designed a hidden mechanism that held the cube together while letting its parts turn. He added a solid colour to each face so the movement would be visible. In his own account to [theguardian.com](https://www.theguardian.com/culture/2015/may/26/erno-rubik-how-we-made-rubiks-cube), he used primary colours as a simple code to make sense of the rotations. After scrambling it, he needed about a month to restore it, which made him the first person to solve it, according to the BBC and Smithsonian Magazine. [3] [5] [4]

Rubik has described the Danube as an inspiration: watching water move around pebbles led to the idea of the twisting mechanism. A separate account in the [nytimes.com](https://www.nytimes.com/2012/02/12/magazine/rubiks-cube.html) article, attributed to puzzle expert Jerry Slocum, says the idea came when Rubik had students slice a foam cube and he noticed the top half could rotate relative to the bottom. These accounts differ, and the search results do not reconcile them. [5] [6]

Rubik applied for the patent in January 1975, and it was granted in 1977. Under Hungary's planned economy, manufacturing options were limited, so he worked with a small company, Politechnika, and the cube appeared in Budapest shops in 1977. Early enthusiasts were mostly designers, architects and mathematicians in Hungary. At the 1979 Nuremberg Toy Fair, Tom Kremer of Seven Towns Ltd. saw the cube and arranged a licence with the Ideal Toy Company, which renamed it Rubik's Cube and launched it internationally in 1980. The BBC estimates that more than 100 million had been sold by 1982. [1] [3] [4] [2]