There are many historical studies that dealt with analysis and detail about the Mughal Empire and the movement of its expansion, but most of these studies did not dwell on the historical roots of the Mongols, in terms of their origins, tribes, their way of life, and the nature of their tribes' dealings with each other, and there is no doubt that knowledge of such information seems essential so that we can understand The way in which Temujin fought for the unification of the Mongols under his leadership so that this unification was a prelude to the declaration of the formation of his state, whose official announcement came in a general conference of the leaders of the Mongols in the year 603 AH / 1205 AD, in which Temujin was called the title of Genghis Khan as an indication that he is the Great Khan of the Mongols, as well as a sentence Decisions that were necessary to support his authority and to be a pillar for him to build a strong state capable of achieving his ambitions to be a master on earth, which he summed up in his famous saying there ((One sun in the sky, and one lord on earth)).