The use of capital figures began in the Ming Dynasty. Zhu Yuanzhang issued a decree because of a major corruption case "Guo Huan case" at that time, clearly requiring that the number of bookkeeping must be changed from "one, two, three, four, five, six, seven, eight, nine, ten, ten and one hundred thousand" to:
Use complex Chinese characters such as "one, two, three, four, five, earth, seven, eight, nine, pick up, hundred (strange) and thousand (money)" to increase the difficulty of altering the account books. Later, "Mo" and "Qian" were rewritten as "Bai and Qian", which have been used ever since.
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Purpose of introduction
Whether it is Arabic numerals (1, 2,3) or Chinese lowercase numerals (1, 2,3), because the strokes are simple and easy to be altered and tampered with, the numbers on general documents and commercial financial bills should be capitalized in chinese numerals: one, two, three, four, five, six, seven, eight and nine.
For example, "3,564 yuan" is written as "3,000 Wu Bai and 64 yuan". These Chinese characters have existed for a long time, and they are used as capital figures and belong to borrowing. The complicated writing of this number was fully used as early as the Tang Dynasty, and then it was gradually standardized as a set of "uppercase numbers".