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

What’s really interesting is that horses evolved in North America and disappeared from that continent when they crossed the land bridge during the last ice age to Asia. They were reintroduced by the Spanish in the 1600’s and immediately re-adapted to the Americas and proliferated.

Horses are so important to human civilization, we have historically gone to great lengths to take them everywhere. Even Hawaii.