Being from Hungary, then behind the Iron Curtain, it meant that Rubik took a few years to market the cube as a toy. It was shown at the Nuremberg Toy Fair in 1979 (a toy fair which has seen many great toys be launched, such as Playmobil in 1974), and was spotted as a potential hit. It was licensed to the Ideal Toy Corp in 1980 and, by January 2009, more than 350 million units had been sold worldwide, making it the biggest-selling toy of all time.