Traditional Culture Encyclopedia - Photography major - When was the abacus invented?
When was the abacus invented?
Inventor of abacus: Liu Hong.
Liu Hong, Zhuo Zi, was born in Mengyin County, Taishan Mountain in the Eastern Han Dynasty (now Mengyin County, Linyi City, Shandong Province), and was a descendant of Liu Xing, the king of Lu in the Eastern Han Dynasty. He was an outstanding astronomer and mathematician in ancient China, the inventor of abacus and the discoverer of the theory of uneven moon motion, and was honored as a "computational saint" by later generations.
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