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All breeds of dogs are descendants of wolves.

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The domestication of dogs started more than ten thousand years ago, when ancient Egyptians reared Saluki hunting dogs. In arabic, "Saluki" denotes the noble one. The Saluki is considered the oldest known canine breed in history.

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Cerberus - In Greek Mythology, Cerberus was a dog with three heads who guarded the gates of underworld.

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Argos - A hunting dog which was owned by the Greek Mythology hero, Ulysses. Argos was the only one who recognized his master when Ulysses, dressed like a beggar, returned home after twenty years of roaming the world.

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Laika - In 1957, Russian scientists sent this dog via an artificial earth satellite to space. Laika is considered as the world's first traveler in space. Laika died in space however one of her daughters by the name of Pushnika produced four puppies with a terrier called Charlie which was owned by President John F. Kennedy.

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The Pekingese was a dog well-loved by ancient Chinese royalty. They carry their pets well-tucked within the sleeves of their robes. Commoners were not allowed to own a Pekingese in ancient China.

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Daschunds were originally bred to seek out and battle badgers within their dens.

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Among the survivors of the ill-fated Titanic was a Pomeranian, a Newfoundland and a Pekingese.

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In North America, the Chihuahua is considered as the oldest breed of dog known.

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Monks raised the Lhasa Apso to guard their temples.

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In 1860, a German Tax Collector by the name of Louis Doberman created the Doberman breed to protect him.

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The Pug got its name from the pug monkey that it resembles.

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St. Bernard is the name of a dangerous pass traversing the Swiss and Italian Alps. Before, St. Bernard dogs were called Barry Dogs.

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The oldest dog breed is said to be the Greyhounds. Contrary to popular belief, the name of the breed does not come from the color "grey" rather "Greyhound" comes from the German name "Greishund" that means "old or ancient dog".

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During World War II, the Russians used dogs to go on suicide missions targeting the German tanks. These unfortunate dogs had explosives attached on their backs

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During the middle ages, Mastiffs and Great Danes were dressed up in light body shields where a pot of flaming sulfur was attached. These dogs were made to join the battle against knights on horses and to protect caravans loaded with supplies.

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Pete was the name of Teddy Roosevelt's dog which was known to rip the pants off of a French ambassador while visiting the White House.

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US President Lyndon Johnson named his two beagles Him and Her.

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The phrase "raining cats and dogs" originated from the 17th century when many dogs and cats died due to a heavy rains in England.

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Collies were called Scottish Sheepdogs until the late 1800's.