Daddy (1994 ‒ February 19, 2010) was an American Pit Bull Terrier integral to dog trainer Cesar Millan's work and his television series, "Dog Whisperer".
 Daddy became known for his calm temperament, tolerance for smaller dogs and capacity for empathy.
The Rhodesian ridgeback is a dog breed developed in South Africa.
 Its European forebears can be traced to the early pioneers of the Cape Colony of southern Africa, who crossed their dogs with the semi-domesticated, ridged hunting dogs of the Khoikhoi.
Buster Brown was a comic strip character created in 1902 by Richard F. Outcault.
 Adopted as the mascot of the Brown Shoe Company in 1904, Buster Brown, his sweetheart Mary Jane, and his dog Tige, an American Pit Bull Terrier, were well-known to the American public in the early 20th century.
 The character's name was also used to describe a popular style of suit for young boys, the Buster Brown suit, that echoed his own outfit.
Morghem's .500 Nitro Express known as Frank's Khing at owner/call name registered events, is a UKC registered male American Pit Bull Terrier.
 Who competes in dog sports and conformation shows earning titles in Dock Jump, Lure Course, Show Champion, Rally Obedience and Weight Pull.
 Khing has been awarded the AKC Canine Good Citizen and USTTA temperament tested certifications.
Dempsey (ca. 1986 - 2003) was a female American Pit Bull Terrier who was the subject of a high-profile challenge to the British Dangerous Dogs Act 1991.
 She was owned by Dianne Fanneran and lived in London.
The American Dog Breeders Association(also known as ADBA) was started in September 1909 as a multiple breed association.
 The residing president, Guy McCord, was an avid fancier and breeder of the American Pit Bull Terrier and was a close friend of John P. Colby.
 Colby was the mainstay of the ADBA and therefore it was considered the "home" registration office for the Colby dogs.
 All members in good standing could register their dogs and litters for the yearly fee of $2.50.
 The exclusive member’s idea gradually was replaced by a registry open to all owners and breeders of purebred dogs.
 Over time the association focused on the registration of the American Pit Bull Terrier.
The American Pit Bull Terrier (APBT) is a dog breed.
 It is a medium-sized, solidly-built, intelligent, short-haired dog whose early ancestors came from the British Isles.
 When compared with the English Staffordshire Bull Terrier (another breed within the type commonly called pit bulls), the American Pit Bull Terrier is larger by margins of 6 - in height and 25 - in weight.
 The American Pit Bull Terrier varies in size.
 Males normally are about 18-21 inches (45–53 cm) in height and around 35-60 pounds (15–27 kg) in weight.
 Females are normally around 17-20 inches (43–50 cm) in height and 30-50 pounds (13–22 kg) in weight.
Pit bull is the common name for a type of dog.
 Formal breeds often considered in North America to be of the pit bull type include the American Pit Bull Terrier, American Staffordshire Terrier, American Bully, and Staffordshire Bull Terrier.
 The American Bulldog is also sometimes included.
 Many of these breeds were originally developed as fighting dogs from cross breeding bull-baiting dogs (used to hold the faces and heads of larger animals such as bulls) and terriers.
 After the use of dogs in blood sports was banned, such dogs were used as catch dogs in the United States for semi-wild cattle and hogs, to hunt and drive livestock, and as family companions.
 Despite dog fighting now being illegal in the United States, it still exists as an underground activity, and pit bulls are a common breed of choice.
The Chamuco (a Mexican word which means "devil") or Mexican Pitbull is a dog breed not recognized by any Canofile association.
 It originated in the center of Mexico, it was developed in this country in the 1970s, product of the accidental or intentional crosses of the American Pit Bull Terrier with the now extinct Mexican Bulldog, street dogs, American Bully, Pitbull Blue, Staffordshire bull terrier, American Staffordshire Terrier, and probably with the Boxer.
 Its name comes from the Mexican slang "Chamuco", which means devil because of its temperament and tenacity.
 Also it called Mexican pitbull or miniature pitbull, but actually is Dogo of Mexican origin.
The Bull and Terrier is a breed of dog that was the progenitor of the American Pit Bull Terrier, American Staffordshire Terrier, English Bull Terrier and the Staffordshire Bull Terrier.

Question: Do both the American Pit Bull Terrier and Rhodesian Ridgeback originate from South Africa?
Answer: no