Staffordshire Bull Terrier

Staffordshire Bull Terrier
Common nicknames	Stafford[1] Staffy
Origin	United Kingdom
Foundation stock	Bull and terrier Old English Bulldog Black and Tan Terrier
Traits Height 36–41 cm (14–16 in) Weight Males 13–17 kg (29–37 lb) Females 11–15.4 kg (24–34 lb) Coat smooth, short, and close Colour white; black, blue, fawn, or red, all with or without white; any variety of brindle, with or without white Litter size 5-7
Kennel club standards KC standard Fédération Cynologique Internationale standard
Dog (domestic dog)

The Staffordshire Bull Terrier, also called the Staffy or Stafford, is a purebred dog of small to medium size in the terrier group that originated in the northern parts of Birmingham and in the Black Country of Staffordshire, for which it is named. They descended from 19th-century bull terriers that were developed by crossing bulldogs with various terriers to create a generic type of dog generally known as bull and terriers. Staffords share the same ancestry with the modern Bull Terrier, although the two breeds developed along independent lines, and do not resemble each other. Modern Staffords more closely resemble the old type of bull terrier, and were first recognised as a purebred dog breed by The Kennel Club of Great Britain in 1935.

Within the broad sweep of dog history, the story behind the modern Stafford is rather brief and somewhat confusing because of the multiple aliases attached to these dogs in centuries past, such as the "Patched Fighting Terrier", "Staffordshire Pit-dog", "Brindle Bull", and "Bull-and-Terrier".^[2] Similar crosses also had aliases such as half-and-halves and half-breds. Blood sports such as bull-baiting and bear-baiting were outlawed with the passing of the Cruelty to Animals Act 1835 by Parliament, making it illegal to bait animals but promoting the matching of dogs against each other. Dog breeders migrated away from the heavier bulldogs, and introduced terrier blood into their crosses for gameness and agility. These bull and terrier crosses produced the ancestral breeding stock that, over the course of decades, evolved into the modern conformation show dogs we know today as the Staffordshire Bull Terrier and the Bull Terrier. It was shortly before the American Civil War that immigrants from Great Britain brought their bull and terrier crossbreeds into the U.S. They became the ancestral progenitors of the American Staffordshire Terrier (AmStaff), Miniature Bull Terrier, Boston Terrier, and American Pit Bull Terrier.