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In 1904, French mathematician and theoretical astronomer Poincaré posed a problem that was difficult to understand in itself. 'Can a closed three-dimensional universe without holes be transformed into another shape?' This problem remained unsolved for about 100 years, and finally in 2000, a mathematics research institute declared it one of the world's seven greatest problems and offered a prize. A whopping $1 million! However, only three years after offering the prize, Russian genius mathematician Grigori Perelman solved the problem and refused the prize. The reason was, 'How can I chase a million dollars when I am chasing the secrets of the universe?' The interesting and fun story of civilization and mathematics begins. #Poincaré #Perelman #Civilization and Mathematics