The Chow-Chow is considered a descendant race of primitive ancestors. It is probably one of the oldest breeds of dog. In fact, it is so ancient that it is difficult to trace its origin precisely. Its appearance seems to date back to 3,000 BCE, a very obscure time period.
It apparently descends from the “war dogs” which accompanied the Mongols and Tartars when they invaded China. The literature suggests that these dogs looked like lions and that they had blue tongues. This is a feature that the Chow-Chow has kept.