List the 4 major horse breeds?

There is no definitive list of "4 major horse breeds" as there are hundreds of horse breeds around the world, each with its own unique characteristics and purposes.

However, some breeds are very popular and widely recognized, such as:

* Thoroughbred: Known for speed and athleticism, primarily used for racing.

* Arabian: Ancient breed known for endurance and stamina, prized for its beauty and intelligence.

* Quarter Horse: Developed for short-distance racing and herding, known for quick acceleration and agility.

* American Quarter Horse: Similar to the Quarter Horse, but bred in the United States.

These are just a few examples, and many other breeds could be considered "major" depending on the criteria used.