It is said that decimal numeral system started in China, BC 13th century. At that time, they have no numbers, and they have used rods, made with bamboo or wood colored with black, for counting.
Archaeological evidence indicated that a full-fledged, positional decimal system of numerals, known as the rod calculus, consisting of "hardware" (the counting rods) and "software" (Chinese multiplication table) with the associated arithmetic operations of addition, subtraction, multiplication and division was fully developed in theSpring and Autumn period.
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