Rubik's Cube, also known as Rubik's Cube, Square Matrix or Hall Square, originated in China. Yang Hui, a mathematician in the Song Dynasty, called it a vertical and horizontal map. The so-called vertical and horizontal graph is from 1 to n 2, and these n 2 natural numbers are arranged into a square matrix with n rows and n columns according to the law of one benefit. It has a wonderful property, and the appropriate numbers are arranged on tables of various geometric shapes. If these numbers are simply arranged logically, the final sum or product is exactly the same. About 2000 years ago, during the Western Han Dynasty, it was said that Yu Xia was in charge of water conservancy. A horse jumped out of the Yellow River with a picture on its back, which was called "River Map". A turtle appeared in the Luoshui River. There is a symbol of good luck on the turtle's back, named "Luo Shu". They found that every column, row and diagonal of this pattern add up to the same number, which is what we now call the Rubik's Cube. Some people think that "Luo Shu" is an alien relic. The "River Map" describes the gene sequencing rules of the universe (including aliens), and the Rubik's Cube is the alien's self-introduction to the earth people. In addition, a jade pendant hung by Islamic believers in the Yuan Dynasty was dug up in Lujiazui, Pudong, Shanghai a few years ago. On the front of the jade pendant is written: "Everything is not the Lord, only the truth is slaughtered, and Muhammad is its messenger". On the other side of the jade pendant is a fourth-order Rubik's cube. Regarding the Rubik's Cube, there is a saying of "river map" and "Luo Shu" in China. According to legend, in ancient times, Fu won the world and ruled the country well, reaching the sky. So a dragon horse jumped out of the Yellow River with a picture on its back and gave it to him as a gift. This is the "River Map" and the earliest Rubik's Cube. Fu inferred the gossip with the help of River Map, and later Dayu. People call it "Luo Shu". There are 45 black and white circles in the picture drawn by Uncle Luo. By representing these small circles and numbers together, we get 9. These nine numbers can form a vertical and horizontal diagram. People call the magic square of nine numbers, three rows and three columns the third-order magic square. In addition, there are four or five orders ... Later, after research, the formula for calculating the sum of all numbers on each line, column and diagonal of the magic square of any order is: s = n (n 2+1)/2, where n is the order of the magic square, and the number sought is s, and the magic square was first recorded in Dadai in the Spring and Autumn Period of 500 BC in China. The Greek Saiweng mentioned the Rubik's Cube for the first time. China not only owns the invention right of the Rubik's Cube, but also is a country that makes in-depth research on the Rubik's Cube. Yang Hui, a mathematician in the 3rd century A.D./kloc-0, once worked out a magic square of order 3- 10, which was recorded in his book "Algorithm for Continuing the Ancient Hall" written in 275. In Europe, until 574. /kloc-there are also six-order Rubik's cubes in Arabic literature in the 0/2 century. Archaeologists in China once discovered the sixth-order Rubik's Cube in five Arabic documents in Xi 'an. Besides these, the earliest fourth-order magic square in history was discovered in India, which is a complete magic square (mentioned later), more than 200 years earlier than Yang Hui in China. Indians believe that this is written by God. The sixth-order Rubik's Cube (ancient Arabic numerals) was unearthed in Xi 'an on 1956. /kloc-In the 3rd century, the Eastern Roman Empire became interested in the Rubik's Cube, but it did not produce any results. It was not until the15th century that Musoprah, who lived in Constantinople, passed the vertical and horizontal maps of China to Europeans. Europeans think that the Rubik's Cube can suppress demons, so they use it as a talisman. It is also called the Rubik's Cube. The earliest Rubik's Cube in Europe was in a painting by the famous German painter albrecht Toure, with a fourth-order Rubik's Cube on it, and the two numbers behind the Rubik's Cube happened to be the year when the painting was made (15 14). This is the oldest Rubik's cube in Europe.