By the time humans began to keep written records, horse racing was an organized sport in all major civilizations from Central Asia to the Mediterranean. Both chariot and mounted horse racing were events in the ancient Greek Olympics by 638 BC, and the sport became a public obsession in the Roman Empire. The origins of …

The British settlers brought horses and horse racing with them to the New World, with the first racetrack laid out on Long Island as early as 1665. Although the sport became a popular local pastime, the development of organized racing did not arrive until after the Civil War. (The American Stud Book was begun in …

Although science has been unable to come up with any breeding system that guarantees the birth of a champion, breeders over the centuries have produced an increasingly higher percentage of Thoroughbreds who are successful on the racetrack by following two basic principles. The first is that Thoroughbreds with superior racing ability are more likely to …