Lo Shu Magic Square
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Magic squares have been around for over 3,000 years. They are descendants of the oldest known number mystery, the legend of Lo Shu, found in China in a book entitled Yih King.
To learn more about the legend of Lo Shu I wrote to Professor Mutsumi Suzuki formerly of Japan's Tohoku University, who sent my question on to Philip I. S. Lei, what at the time was a Master of Philosophy student in the Computer Science Department of the Hong Kong University of Science and Technology. Here is Mr. Lei's response:Dear Suzanne, Mutsumi forwarded your message to me. I'm glad to see your pages about magic square. The story of 'Lo Shu' is as follows: In the ancient time of China, there was a huge flood. The people tried to offer some sacrifice to the 'river god' of one of the flooding rivers, the 'Lo' river, to calm his anger. However, every time a turtle came from the river and walked around the sacrifice. The river god didn't accept the sacrifice until one time, a child noticed the curious figure on the turtle shell. Hence they realized the correct amount of sacrifice to make (15). The word 'Shu' means books. Hope this may help. Best Wishes, Philip I.S. LeiCan you see why the 'magic number' is 15?
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