China has had dogs since ancient times. When did the ancients have dogs?

Dogs are one of the earliest domesticated animals. In China, the remains of dogs have been found in archaeological sites 9,000 years ago, which shows that as early as ancient times, our ancestors had completed the domestication of dogs and began to have the wind of keeping dogs. During the Shang and Zhou Dynasties, dogs, horses, cows, sheep, pigs and chickens were also called "six animals" and became the most common domestic animals. And horses and dogs are the most valued. Horses are used for driving, and nobles use cars to travel and fight. Therefore, the ancients attached great importance to the breeding and training of horses, and riding horses became a special technology, called "imperial" and was included in one of the "six arts". Dogs are more widely used than horses. First, it is used to hunt and help hunters catch prey, called "wild dogs", which is today's hounds; The second is to be used as a doorman, or to guard the home and protect the hospital, or to be carried around as a doorman, called a "barking dog"; Third, it is used for sacrifice, sacrifice, and sometimes for eating, which is called "eating dogs". It is precisely because dogs have a wide range of uses that the custom of keeping dogs prevailed in the Zhou Dynasty. According to Zhou Li, the Zhou Dynasty set up a special official to keep dogs, which was called "136 dogs", showing its importance.