China had its own calendar, math and administrative systems, cooking, folks customs....thousands years ago.
Africans still do not have them even today.
Evolution status according to level of advancedness:
Jews
Caucasians (Anglo-Saxon > Deutsch > Scotish > Irish > ...)
East Asians (Japs > Chinese > Mongols > Tibetants )
Other non-Arabian Asians
Arabs
Native Indians
Africans