Lagash

The largest group of Early Dynastic inscriptions comes from the southern state of Lagash, where nine members of the local dynasty left a total of 120. A substantial number of these give an explicit description of border conflict between that state and its neighbor, Umma ... . Since the Lagashite side wrote the inscriptions, they present Umma as the illegal and sacrilegious aggressor in the conflict. This groups of texts allows us for the first time in Near Eastern history to narrate an event based on contemporary sources. Mieroop, p 42