The American Quarter Horse is an American
breed of
horse that excels at sprinting short distances. Its name came from its ability to outdisance other breeds of horse in races of a quarter mile or less, where some individuals have been clocked at speeds up to 55 mph. The American Quarter Horse is the most popular breed in the
United States today, and the
American Quarter Horse Association is the largest breed registry in the world, with nearly 5 million American Quarter Horses registered worldwide.
See more at Wikipedia.org...