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17 Jan 2004
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24 Dhul Qadah 1424
23 Tevet 5764
27 dongzhì, Sheep
27 Dey 1382
D 100 blue
27 Pausa 1925
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Photo: Schlern Mt
Complex curves It could be strange for laymen that such easy-to-imagine concepts as spheres, tori et cetera are so important in mathematics. Discovered by great mathematicians of XVIII-XIX centuries, such as Gauss, Euler, Riemann
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Ibn Battuta was a Maroccan traveller of XIV century. His hajj led him not only to Makkah, but as far as China and Spain
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