Heptades and Heptagons: The Historical Roots of 7
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Rolling a 7 with a pair of dice, breaking a mirror and getting cautioned about 7 years of bad luck, drinking 7-Up, flying in a Boeing 747, working at something 24/7, staying open 7 days a week: What is it about the number 7 that has made it such a common part of our vocabulary and daily lives? Whether discussing good or bad fortune, measuring time, or exploring a numerical framework within religions of the world, the number 7 has a special place in the world of numbers, numerals, and culture. How 7 took on such a key role in world cultures and mathematics is a rich and diverse story spanning all seven continents.
1999 ◽
Vol 8
(2)
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pp. 123-137
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