During the Ice Age, the Earth's orbit moved closer to the sun causing a thinner sheet of ice making certain mammals able to survive.  Among these animals included horses and deer.  With horses still alive, travel was made easier as well as warfare.  Since many nomads lived in Asia, the nomadic peoples used horses to cross the Bering Strait into North America.  This lead to the rise in cavalry-based warfare and the way of life today.
Stonewall on horseback

A various form of how horses changed the way of warfare.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.