How come horses were so common all over the world in the past

Question

I recently watched a documentary about a brief history of each continent when I noticed horses were really common everywhere for an example Genghis khan in Asia, Saladin in Africa, natives in North and South America and all over Europe too. I know they’ve been brought with settlers to Australia because it was mentioned in the documentary but what about the other continents ?

In: 756

Answer 1

There were no horses on America continents. Europeans brought them to America and the first ppl who met them were scared. They lost their battles because of this.

Jared M. Diamond
“Guns, Germs, and Steel: The Fates of Human Societies”