Over time we have been choosing dogs with traits that fit our needs. As human society became more diversified so did the breeds of dogs. In Europe, during the 18th century, having a pure bred dog became a symbol of status. We began choosing dogs based on aesthetics.
The number of breeds began to grow. Currently there are hundreds of breeds of dogs. Many are working dogs, but the vast majority are in our family homes. They are part of our family, we are part of their pack.