Written theories of horse-breeding go back at least 3,000 years, to the clay tablets of ancient Phoenicia in the Middle East, when horses were bred to be big and strong for warfare. Eventually, they were crossed with Arabian breeds to produce more speed and stamina, and such hybridization produced the first thoroughbred racehorses in the 1600s.

Fortunately, race records and pedigrees have been kept by the Jockey Club ever since, providing breeders with a great deal of reliable data on the ingredients for speed in the racehorse.

Nevertheless, a good deal of superstition and old wives tales persisted over the years, based on the limited experience and prejudices of the breeders involved, but the computer generation now offers us the opportunity to separate most fact from fiction.

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