How horses changed history

People have been captivated by horses for a long time. They appear more than any other animal in cave paintings dating back 30,000 years. But how did horses make the journey from wild animals to ones humans could hitch themselves to and even ride? William T. Taylor explores how the domestication of horses influenced the fate of entire civilizations and dramatically altered human history. [Directed by Denys Spolitak, narrated by Addison Anderson, music by Salil Bhayani, cAMP Studio].