After a brutal, unprovoked raid on the peaceful Terrock village of Rotynak from callous, uncivilized barbarian marauders from the North, the warleaders and councillors of Rotynak began to assess the damage, in order to best marshal the remainder of their village's denizens to restore Rotynak's burglarized food supplies and vandalized infrastructure.

Tajellic, son of Vasil and of Auria, denizen of Rotynak, killer of horned dogs, master of the bow, was one of those councillors assessing the outcome of that vicious attack. As warleader of the archers on the East flank of Rotynak during the barbaric siege, he noticed that his bestial adversaries were able to hurl crude stones with as much strength and precision as he could shoot arrows.

Predictably, he focused his investigation on how such rabid feats of strength were accomplished, and his investigation turned up several specifically shaped pieces of cloth on the corpses of some of the barbarians. He, correctly, deduced that it was not in fact any great feat of strength that allowed crude stones to be hurled with incredible force, but rather a mundane contraption that greatly enhanced its users stone-hurling capability.

Being a man of learning and reason, Tajellic began to experiment with the idea of slinging stones, and in several months had outfitted several of Rotynak's former archers with such slings, ready to be unleashed on neighboring Terrock villages, to procure their food supplies to replace Rotynak's depleted ones.

This new rock-slinging contraption spread throughout the Terrock in the regular pattern of raids and counter-raids, until most Terrock villages of non-trivial size had trained their own corps of slingers, ready to raid or repel a raid at a moment's notice.