The moment domesticated horses changed the course of human history 2500 BCE

The moment domesticated horses changed the course of human history is now revealed - CNN: "A dominant genetic horse population appeared on the Western Eurasian Pontic-Caspian steppe of North Caucasus, east of the Dnieper River within the Don and Volga basins. ... between 4,600-4,200 years ago, herders located in the Don-Volga region found a way to increase the local horse reproductive pool. This horse population then spread out and replaced the wild horse groups roaming across Eurasia within centuries."