According to www.dogbreedinfo.com, bred down in size from pit-fighting dogs of the bull and terrier types, the Boston Terrier originally weighed up to 44 pounds (20 kg.) and was known as Olde Boston Bulldogge. It is difficult to believe that these dapper little dogs were once tough pit-fighters. In fact, their weight classifications were once divided as lightweight, middle and heavyweight. The Boston Terrier is one of the few breeds that was "Made in the USA."  Around 1865, the coachmen employed by the wealthy people of Boston began to interbreed dogs owned by their employers. Careful breeding between the now extinct English White Terrier, the English Bulldog, and the French Bulldog provided the foundation for the Boston Terrier. By 1889 the breed had become sufficiently popular in Boston that fanciers formed the American Bull Terrier Club, but this proposed name for the breed was not well received by the Bull Terrier Fanciers.  Shortly after, the breed was named the Boston Terrier after its birthplace. it was first shown locally in 1870, but not recognized by the AKC until 1893. In the early years the color and markings were not very important but by the 1900's the breeds distinctive markings and color were written into the standard becoming an essential feature. Terrier only in name, the Boston Terrier has lost most of their ruthless desire for mayhem, preferring the company of humans, although some males will still challenge other dogs if they feel their territory is being invaded. Though bred at first for use in dog fights, today's Boston Terrier has been bred to have less aggressive tendencies. It is gentle, alert, very intelligent, and well-mannered. Enthusiastic and occasionally rambunctious, this breed has a sense of humor. They are very sensitive to the tone of one's voice. This breed likes to learn and therefore is not difficult to train. Their intelligence ensures they pick things up quickly. At times they can be somewhat willful. Some owners have reported that their dogs are good watchdogs barking only when necessary, while other owners have reported their female Boston Terriers do not bark at the door at all. Most reliable with children, especially good with elderly people and very friendly with strangers. The Boston Terrier is playful, very affectionate and likes to be part of the family. Very popular in the United States, due above all to its excellent character. They generally get along well with non-canine pets. Some males are dominant and may fight with other dogs. These little dogs may be difficult to housebreak. They have a life expectancy of 15 or more years.