Not every horse breed found in the United States originated there. Some breeds developed through generations of breeding in America, while others arrived from different parts of the world and later became important to American equestrian culture. The American Quarter Horse, American Saddlebred, Morgan Horse, and American Paint Horse are examples of breeds with established American development histories. The Arabian and Thoroughbred, by contrast, originated elsewhere but have played important roles in American breeding and equestrian sports. Explore our individual breed profiles to learn more about each breed’s origins, development, defining characteristics, and modern uses.