Every dog has a history. No dog arrived on the planet fully formed in his Bulldog, Poodle or Cocker Spaniel self. They were each developed with the foundation of breeds that came before them. People required certain qualities of their pets and working companions. They would breed the dogs with the qualities they desired until eventually a new breed came into being.
The dear American Eskimo dog has an interesting story He is believed to be descended from the white Italian Spitz, the German Spitz, Keeshond and Pomeranian. The Keeshund originally came in a variety of colours but eventually only grey was accepted leaving the white as not the breed standard. Leaving the white Keeshunds as undesireable. The white Pomeranian breed standard became 8 pounds or less leaving behind the larger Poms. It is believed these dogs were still kept as pets and found their way to the circus as performers. Dog was bred to dog with the most desirable performing qualities. Eventually they made their way to the US and an American name was given to them. Now this sturdy dog is known for his performing and agility abilities.