Little is known about the origins of the Axe Clans. Limited conversations with the orcs revealed that their homeland was far less hospitable than the Expanse, and that they were eager to push through to take the fertile lands. Beyond that, most of the history of the Axe Clans is wrapped up in the Orcish Incursion.
The Axe Clans have a very loose hierarchy where leadership positions are doled out based on personal strength, honor, and wisdom. Thus, most orcish leaders are in their late 20s and early 30s, as the position requires both physical and mental strength. Moreover, clan leadership is fully merit based, as the orcs do not seem to set up dynasties or other forms of hereditary selection.