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We will be happy to post videos as per your requirements also. Do write to us.Chinese Number System : In 1899 a major discovery was made at the archaeological site at the village of Xiao dun in the An-yang district of Henan province. Thousands of bones and tortoise shells were discovered there which had been inscribed with ancient Chinese Numbers. The site had been the capital of the kings of the Late Shang dynasty (this Late Shang is also called the Yin) from the 14th century BC. The last twelve of the Shang kings ruled here until about 1045 BC and the bones and tortoise shells discovered there had been used as part of religious ceremonies. Questions were inscribed on one side of a tortoise shell, the other side of the shell was then subjected to the heat of a fire, and the cracks which appeared were interpreted as the answers to the questions coming from ancient ancestors.