Who is The Early Mongols from Genghis Khan and the Making of the Modern World and what is their importance?

The Early Mongol tribes prior to Genghis Khan existed in a part of the world inhabited by humans for millennia and had undergone their own bronze and iron ages. They are largely of Turkic origin and lived as nomads, with great control over horses and fighting mostly among themselves, though sometimes with China, who encouraged fighting between them until Genghis Khan united them.