What is the oldest breed of horse in existence?

Answer 1

There is some debate to this question. There are those who say that the Arabian is the oldest domesticated horse breed in the world, but others argue that the Caspian is much older, being some 3,000 years before the Arabians were ever "created." It has physical characteristics different to other equines. There is an extra molar in the upper jaw, a pronounced difference in the shape of the scapula, and a different formation of parietal bones of the head. With Arabs, there is evidence of the trilingual seal of Darius the Great (c. 500 BC) showing very small horses pulling the royal chariot; the Egyptian artifacts, dated 1,000 years before Darius, depict similar horses of small stature but full of quality.

Then there are still others that argue a third breed, being the Prezwalski's horse, is the oldest horse breed in the world due to its truly wild nature and the fact that it's the first horse with modern characteristics after the last Ice Age.

Answer 2

The arabian.

Przewalski's Horse also known as the Dzungarian Horse, which are native to the steppes of Asia near Mongolia, are the world's oldest known breed.

The oldest modern breed that has been domesticated and bred by humans is the Arabian.

Answer 3

The oldest and purest horse breed by far is the Arabian.

Answer 4

Currently that would be the wild Przewalski's Horse. But in Domestication it is the Caspian, Akhal-Teke and then the Arabian horse and Barb horse.