The Pekingese dog has been a companion dog of kings and queens for centuries. They were one of the purest and oldest breed of dogs in the world due to their exclusive function as royal pets. Their appearance has hardly changed at all. Because they look like miniature lions, their name in Chinese means "the lion dog". An interesting story I found in Wikipedia is that the Empress CiXi of China liked to present these dogs to her American friends. One of them was presented to the daughter of Ted Roosevelt.
Below is an old photo of a Pekingese from 1912.
They certainly know how to take good pictures of dogs back then.
Pugs are really popular as pet dogs. They have a very wrinkly face and very large eyes. They are generally small with short but stout legs and very cheerful.
Chow Chow dogs are puffy looking dogs the I really like. Their name in Chinese means "puffy lion dog", which suits them alright. They probably originated from Mongolia but I am not sure. They are also very popular pet dogs and I see them on the street all the time. I found an article online about Chow Chow。 It says "There is a beautiful and ancient fairy-tale that says that while God painted the sky blue, he was followed by a determined Chow Chow who licked up the drops that fell with his tongue." That is the reason why Chow Chows have blue tongues. Very imaginative indeed. Info: The ChowChow Blog
Finally, here's a cover I received last year. Love and take care of your pets.