According to archaeologists, the domesticated horse has been around for nearly 50 million years. Today, there are 300 breeds of horses in the world, each developed for a singular purpose; racing, hauling, pleasure riding, competing, breeding, police work, and more. The poignant films about "Black Beauty," "National Velvet," "The Black Stallion," and "Hidalgo" reflect the love that humans have for their horses.