Appearance
Bulldog, Purebred 6 month-old puppy from AKC Champion bloodlines
The bulldog is a breed with characteristically thick shoulders and a matching head. There are generally thick folds of skin on a bulldog's brow, followed by round, black, wide-set eyes, a short muzzle with characteristic folds called "rope" above the nose, with hanging skin under the neck, drooping lips, and pointed teeth. The coat is short, flat and sleek, with colors of red, fawn, white, brindle (mixed colors, often in waves or irregular stripes), and piebalds of these.

In the US, the size of a typical mature male is about 45 pounds and that for mature females is about 45 pounds. In the United Kingdom, the breed standard is 55 pounds for a male and 50 pounds for a female, though it is not uncommon for males to be 60 pounds.

While some canine breeds require their tails to be cut or docked soon after birth, bulldogs are one of very few breeds whose tail is naturally short and curled. A longer upright or "gay" tail is a serious fault in a show bulldog.

Temperament
Despite their famous "sourpuss" expression, bulldogs are generally docile although can prove to be very fast movers over a short distance. They are friendly and gregarious but occasionally willful. The phrase "stubborn as a bulldog" is loosely rooted in fact. They rank 77th out of 79 in Stanley Coren's The Intelligence of Dogs, being of lowest degree working/obedience intelligence.

Breeders have worked to breed aggression out of the breed, and as such the dog is known to be of generally good temperament. Bulldogs can be so attached to home and family that they will not venture out of the yard without a human companion. Due to their friendly nature bulldogs are known for getting along well with children, other dogs and pets.

History
The term "bulldog" was first used around 1568 and might have been applied to other various ancestors of modern bulldog breeds before adorning the breed we recognize today.bulldogs back then where used for sporting like fighting a bull nocking them over for money then there was a law that no more bull fighting and the breed almost whent extinct.the breed was already going extinct when english bulldog lovers brought the breed back in the 1860s.

It has been theorized that bulldogs were bred in England as a cross between the Mastiff and thePug, though their genetic origin is debated. Since the pug did not arrive in Europe until the late16th century, it is unlikely that the breed is an original progenitor of the Bulldog. The Bulldog and the Mastiff are widely thought to have common roots in the ancient Pugnaces Britanniae of Great Britain.

In the 1600s, bulldogs were used for bullbaiting (as well as bearbaiting)—a gambling sport popular in the 17th century with wagers laid while trained bulldogs leapt at a bull lashed to a post. The bulldog's typical means of attack included latching onto the animal's snout and attempting to suffocate it.

However, the bulldog's early role was not limited to sport. In mid-17th century New York, bulldogs were used as a part of a city-wide round-up effort led by governor Richard Nicolls. Because cornering and leading wild bulls was dangerous, bulldogs were trained to seize a bull by its nose long enough for a rope to be secured around its neck. The use of dogs for fighting with other dogs or other animals was banned in the United Kingdom by the Cruelty to Animals Act 1835, but Bulldogs as pets were continually promoted by dog dealer Bill George.

In time, the original Old English Bulldogwas crossed with the pug. The outcome was a shorter, wider dog with a brachycephalic skull. Though today's bulldog looks tough, he cannot perform the job he was originally created for, as he cannot withstand the rigors of running and being thrown from a bull, and cannot grip with such a short muzzle.

The oldest single breed specialty club is The Bulldog Club (England), which was formed in 1878. Members of this club met frequently at the Blue Post pub on Oxford Street in London. There they wrote the first standard of perfection for the breed. In 1891 the two top bulldogs, Orry and Dockleaf, competed in a contest to see which dog could walk the farthest. Orry was reminiscent of the original bulldogs, lighter boned and very athletic. Dockleaf was smaller and heavier set, more like modern bulldogs. Dockleaf was declared the winner that year. Although some argued that the older version of the bulldog was more fit to perform, the modern version’s looks won over the fans of the breed because they proved they were equally as fit and athletic in the walking competition.

At the turn of the 20th century, Ch. Rodney Stone became the first Bulldog to command a price of $5000 when he was bought by controversial Irish-American political figure Richard Croker.

Popular mascot
Main article: List of bulldog mascots
The British/English Bulldog is one of the four national animals of the United Kingdom. The breed is the official mascot of the United States Marine Corps and many bases have their own mascot on base. Thirty-nine American universities use a bulldog as their mascot.[9] This includes mascots such as Yale University's Handsome Dan,Georgetown University's Jack the Bulldog, the University of Georgia's Uga, Gonzaga University's Spike, Butler University's Blue, Louisiana Tech University's Tech, Mississippi State's Bully, Western Illinois University's Rocky, the University of North Carolina at Asheville's Rocky,Fresno State's Timeout, and Drake University's Spike