The origin of Rubik's cube

Early Attempt 1970 In March, Larry Nichols invented the "Groupable Rotating Puzzle" and applied for a Canadian patent. It is a 2×2×2 Rubik's cube, but each square is attracted by magnets. 1972 obtained the American patent, two years earlier than Professor rubik's third-order Rubik's Rubik's cube. At first, Ern Rubik was a Hungarian professor of architecture and sculpture. In order to help students understand the composition and structure of the space cube, he made the first prototype of the Rubik's Cube, inspired by the gravel in the Danube. 1974, Professor rubik invented the first Rubik's Cube (then called Rubik's Cube), and obtained the Hungarian patent number HU 170062 in 1975, but did not apply for an international patent. The first Rubik's Cube was sold in a toy store in Budapest in 1977. Unlike Nichols' Rubik's Cube, Professor Rubik's Cube's parts are interlocking like tenons, which are not easily separated by external forces and can be made of any material. 1979 In September, Ideal Toy Company brought the Rubik's Cube to all parts of the world, and made its debut at the international toy exhibitions in London, Paris and the United States in February and October. 1 980. After the exhibition, Ideal Toy Company renamed the Rubik's Cube as 1980 May, and the first batch of Rubik's Cube was exported to Hungary. The popular Rubik's Cube was widely loved by the public in 1980, and nearly 2 million Rubiks' Cube were sold from 1980 to 1982. 198 1 year, a little boy in England, Patrick Bossert, wrote a book called You Can Restore the Rubik's Cube (ISBN 0-14-031483-0), which sold nearly 65,433. It is estimated that in the mid-1980s, one fifth of the people in the world were playing Rubik's Cube. Development Due to the huge business opportunities of Rubik's Cube, Professor Rubik and his partners developed the second-order and fourth-order Rubik's Cube in 1983. And in 1986, a fifth-order Rubik's cube was made. In 2003, Panagiotis verdes Company of Greece applied for the patent of Rubik's Cube of 5× 5 to/kloc-0 /×1×11(the structure of the fifth-order Rubik's Cube is slightly different from that of the professor's Rubik's Cube), and it was awarded to V-in 2008.