The Eldar craftworld of Saim-Hann was one of the first Craftworlds to abandon the crone worlds as the Fall of the Eldar approached, heeding their Farseer's warnings. As such they have spent far more time isolated from the rest of the Eldar than the other main Craftworlds, although they do contact and have a similar culture to the Exodite worlds. They are fierce warriors, who place upon honour a higher value than their sophisticated kin. This, coupled with their pride, has sadly led them to conflict with each other and different Craftworlds. While this generally takes the form of an organised duel between representatives of each clan, in which first blood is usually sufficient, the high number of deaths from these conflicts has lent to the barbaric reputation of the craftworld.
Read more about this topic: Eldar Craftworlds (Warhammer 40,000)