I am still confused why the Chinese writings don't mention them all being wiped out by the Flood?
These will make for fun reading. I grabbed them all off the internet. Can't vouch for the sources. But apparently the Chinese writings do include the flood.
1)Post flood origins of Chinese History"
2)Chinese ancestors came from Red Sea area?
3)Early records of Far Eastern civilizations present a similar pattern of gross unreliability. The historian, Henry Lucas, says in his book, "A Short History of Civilization:" "The study of early Chinese history is attended with almost insuperable difficulties. The numerous literary accounts of ancient Chinese writers cannot be trusted, and their statements that Chinese culture dates from hundreds of thousands of years B.C. should be received with skepticism. The oldest historical classic is the 'Shu Ching,' or, 'Book of History,' by Confucius. This purports to date from 22505 B.C., but is actually of late composition. "That the 'Shu Ching' contains elements of truth is not to be denied, but it is difficult to separate the grains of historical fact from the chaff of literary embellishment."
4)The records of Chinese dynasties dating back to the twenty-forth century BC place the ascent of Yao to the throne in 2357BC and record a great deluge occurring within his reign. Our date for the Noachian deluge is 2348BC, within the reign of Yao. His son and successor was Shumthe name of Noah's son was Shem. Another account shows Yao reigning after the Flood to the very year that Noah died, while his successor reigns 146 years after him, to within a few years of the death of Shem. The correspondence between these Chinese dates and Bible chronology is remarkable, and amounts to much more than mere coincidence.
5)It is reported that there is independent historical confirmation of a long day in the writings of other people. See Arthur Gook, Can A Young Man Trust His Bible?, (London: Pickering and Inglis Ltd.). Gook comments as follows: "There were three ancient nations in the East which kept records of their history---the Greeks, The Egyptians and the Chinese. Each of these nations has a record of an unnaturally long day. Herodotus, 480 B.C. a Greek who is called 'the father of history,' tells us that some priests in Egypt showed him a record telling of the lengthening of a day far beyond the twenty-four hours. In the Chinese ancient writings it is plainly stated that such an occurrence took place in the reign of their Emperor Yeo, and their genealogical tables show that an Emperor of this name was reigning in China in the time of Joshua. Lord Kingsborough, who has made a special study of the aboriginal Indians in America, states that the Mexicans, who reached a high state of civilization long before America was discovered by Europeans, have a record that the sun 'stood still' for a whole day in the year which they call 'seven rabbits.' Now, the year 'seven rabbits' corresponds exactly with the time that Joshua and the Israelites were conquering Palestine." p. 43. Return