Science Fair Project Encyclopedia
He is mentioned as "Tumen" in the ancient Chinese sources. Little is known about his life, and most of the information comes from legends in which he gathers a group of Turkic people living in a legendary place called Ergenikon located in the inaccessible valleys of the Altay Mountains.
He successfully fought against the Avars, another tribe of Turkic people, and eventually founded the Kokturk state, which expanded, in less than one century, to wide territories in Central Asia. He died in the same year he founded his state.
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