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History of writing ancient numbers
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History of writing ancient numbers : ウィキペディア英語版
History of writing ancient numbers

==Pre-history==

The first method of counting was counting on fingers.〔The Earliest Calculating – The Hand, Ifrah (2000), pages 47–61.〕 This evolved into sign language for the hand-to-eye communication of numbers which, while not writing, gave way to written numbers.
Tallies made by carving notches in wood, bone, and stone were used for at least forty thousand years.〔Tally Sticks, Ifrah (2000), pages 64–67.〕 Stone age cultures, including ancient Native American groups, used tallies for gambling with horses, slaves, personal services and trade-goods.
Roman numerals evolved from this primitive system of cutting notches.〔The Origin of Roman Numerals, Ifrah (2000), pages 191–194.〕 It was once believed that they came from alphabetic symbols or from pictographs, but these theories have been disproved.〔Paul Keyser, "The origin of the Latin numerals 1 to 1000 , ''American Journal of Archeology'' 92 (1988), pp. 529–546.〕〔Stephen Chrisomalis, Numerical Notation: A Comparative History (2010).〕

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