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History Comparison Judge. That’s the name of the dog who’s considered to be the origin of the Boston Terrier. Judge was the result of crossing a Bulldog and the now extinct white English Terrier. He was a tough, muscular dog who was bred to entertain the need of dogs who could excel in the blood sports so popular in England in the 19th century. Judge, who was borne sometimes in the 1860s, was sold by his English owner to an American named William O’Brian who brought him to Boston. O’Brian sold him to another Bostonian, Robert C. Hooper, and Judge ended up being called Hooper’s Judge. Due to siring a number of puppies, he is the patriarch of the entire Boston Terrier breed, and the ancestor of all true Bostons.  From the beginning, the breed was called Round Heads, but eventually the breed’s name was changed to honour the city which was so crucial in the creation of the breed. Thus, today we know them as the Boston Terrier. Back in England, the British royalty had been very fond of toy spaniels for centuries. King Charles I and Charles II were devoted to a black and tan version of the toy spaniel who was later named in honour of the latter of the kings.  In the early 1900th century, these toy spaniels were still incredibly popular among British aristocracy, who began breeding their dogs with, most likely, pugs and Japanese chins. This created a whole new dog with a domed head and flatter face, who became known as King Charles spaniels.  In the 1920s people began wondering if there were any old-type toy spaniels, and an American named Roswell Eldridge offered cash as a prize to any English breeder who could produce the Bleinheim Spaniels of the Old World type. Driven by the promise of money, English breeders managed to re-create the old world type toy spaniel, who was rewarded by the name Cavalier King Charles spaniel. Fun fact; the “cavalier” part of its name is a nod to the monarchist party who’d supported the Stuarts during the civil war that cost King Charles I his head.  Looks comparison The Cavalier King Charles is the smaller of these two breeds. He stands up to impressive 12 – 13 inches above the ground, where the Boston Terrier reaches even taller with his 15 – 17 inches. Weight-wise, the Cavalier should stay within 13 – 18 pounds to be healthy, while the Boston Terrier has a larger range and can weight anywhere between 12 – 25 pounds.  The Boston Terrier is quite a sturdy dog, compact and muscular with his large ears erect. His head is quite square with a flat front, which makes his eyes slightly protruding. As a matter of fact, the entire dog is quite square with his long legs and rather short back. The Cavalier, on the other hand, has a more rectangular and very well-balanced shape. The Cavalier King Charles’s head has soft curves and a longer nose than his brother, the King Charles’s spaniel, whose nose is flatter and the same protruding eyes as the Boston Terrier. Another of the big differences between these two breeds is their coats. The Cavalier has that long, silky coat that is so adorably beautiful, while the Boston Terrier has that short coat laying tight on his body. Colour-wise, the Boston Terrier is white and either black, brindle or seal. The Cavalier can be found in black and tan, black and white, Bleinheim or ruby. None of them requires any specific grooming to look gorgeous.  Trainability Comparison Both of these breeds are easy to train, as they are eager to please their human and equally easy to focus through food and/or praise. Although one might think otherwise, the Boston Terrier is quite a softie and needs to be treated with kindness in training.  The Boston Terrier may be the slightly more difficult one when it comes to training. Due to his background with blood sports, and his original cross breeding between bulldog and terriers, he has a strong will combined with a fair amount of stubbornness. He has a mind of his own, so better find out what triggers his will to work to trespass those sides of him. Have fun! Temperament comparison The Cavalier King Charles spaniel was bred to be a lapdog. He’s adorable, not only in looks but also in temperament. He’s sweet and loving, affectionate and gentle and wants nothing else but to please his people. He’s smart and happy to assist in other areas than keeping you company; a good example is therapy dog.  A Boston Terrier, on the other hand, likes to stay busy. While he doesn’t need those many hours of exercise, he still enjoys moving. This can be done by walks or playtime with his people, which he loves and wants to spend as much time with as possible. While he’s that sweet and gentle dog, he still is both strong-willed and stubborn, so please remember that you need to be equally strong-willed and stubborn to make him understand that your rules actually apply to him too.   Worth remembering is that when you bring your puppy home, regardless of breed, he’s an empty paper. It is through how you raise and train your pup he’ll become that awesome canine companion you dream of. 

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