Over the years, there were different variations of names, but in 1940 a registry was formed to preserve the breed which officially became the American Quarter Horse.

During its history, the breed also became well known for its cow sense (the ability to outmanoeuvre cattle) and calm disposition. Today, the heavy muscling and sprinter's speed remain characteristic traits, but like so many things modern the breed has been specialised to excel at particular events.

How can you tell if a horse in the pasture is an American Quarter Horse? Well, if you're not comfortable judging its conformation for clues, it will help to know that American Quarter Horses are allowed only limited white markings on the face and on the legs below the knees. See white anywhere else in spots or patches and you're not looking at an American Quarter Horse.

In addition, there are 13 registrable colours of American Quarter Horses including the most prominent colour of sorrel (reddish brown). The others are bay, black, brown, buckskin, chestnut, dun, red dun, grey, grullo, palomino, red roan and blue roan. It's interesting to note that the official grey colouring is what newcomers often call white, but there are no "white"  American Quarter Horses.

 Of course, beyond its appearance, a registered American Quarter Horse foal (or baby) is the product of a registered American Quarter Horse dam (mare or mother) and a registered American Quarter Horse sire (stallion or father).

The American Quarter Horse Association also offers an appendix registry for foals with one American Quarter Horse parent and one Thoroughbred parent registered with The Jockey Club.

Although the athletic prowess of the American Quarter Horse carries many riders to the winner's circle, it is the breed's versatility and gentle nature that have made it the world's most popular horse. A novice rider of any age or a seasoned professional can find an American Quarter Horse that will provide a ride you will always remember.