Horses were among the last species of livestock to be domesticated. Their domestication took place at least as early as 3000 bce, probably in the Near East, and likely occurred through more than one domestication event. From the 2nd millennium bce, and probably even earlier, the horse was employed as a riding animal by nomadic peoples of central Asia. Horse breeds can be grouped into three general types: heavy horses, light horses, and ponies. Heavy horses, also called draft horses, have been bred to pull heavy loads, such as wagons or farm equipment. These include the ancient Belgian and Percheron ...(100 of 199 words) Access the full article Help support true facts by becoming a member. Subscribe today!