The Edubba is reconstructed primarily from a group of Sumerian literary texts known as the Edubba compositions, recovered at Nippur and dating from the Old Babylonian period (c. 2000–1600 BCE). These texts describe the school in operational detail: the physical space, the daily schedule, the hierarchy of teachers and students, the curriculum sequence, and the social world of scribal education. The Edubba dialogues in particular — debate texts in which two scribes argue their respective merits before a master — preserve the intellectual culture of the institution with unusual directness.

The ummia — the expert, the master, the school father — was the senior teacher and administrator of the Edubba. The Edubba compositions portray the ummia as a figure of considerable authority and exacting standards: he examines students’ tablets personally, disciplines those who arrive late or perform poorly, and receives gifts from parents anxious about their sons’ progress. The ummia was not merely a teacher of technique but the guardian of the tradition: the one responsible for transmitting the full curriculum, including the literary and theological texts that constituted the highest level of Sumerian education.

Enkimansum is one of the named participants in the third Edubba disputation, a Sumerian literary text in which two scribes argue before a master over which of them is the more accomplished. The disputations are among the oldest recorded intellectual debates: they combine genuine pedagogical content (each scribe demonstrating competence in specific curriculum areas) with the conventions of the Sumerian verbal contest tradition. Enkimansum’s name — meaning approximately “lord of the land, the whole of it” — is one of the few individual names preserved from the Edubba context.

Sîn-lēqi-unninni is the earliest named literary author or editor whose work survives. He is credited in ancient catalogue texts with producing the Standard Babylonian version of the Epic of Gilgamesh — the twelve-tablet recension that was found in the library of Ashurbanipal at Nineveh and which forms the basis of all modern translations. Whether he was its sole author, the principal redactor of existing material, or the name attached to a scribal tradition is uncertain; the ancient catalogue texts are unambiguous that a historical person of this name was responsible for this version of the text. His profession is given as âshipu — exorcist — which places him in the priestly-scribal tradition that maintained and transmitted the great Babylonian literary works.

The legal scribe represents the single most numerous category of Edubba graduate: the professional writer of contracts, deeds, loans, and litigation records. The Old Babylonian period produced a sophisticated body of written law, most famously the Code of Hammurabi (c. 1754 BCE), and an enormous volume of documentary legal texts. Scribal training included extensive work with model contracts, and the practising legal scribe was not merely a copyist but an expert in the formulaic language of Babylonian law — the correct witness clauses, the penalty provisions, the oath formulae. The vast majority of surviving cuneiform tablets are legal and administrative documents produced by this class of professional.

The sanga was the temple administrator — the official responsible for managing the economic resources of the great Sumerian and Babylonian temple complexes, which were the principal institutions of redistribution in Mesopotamian society. The sanga maintained records of grain stocks, livestock, textiles, and the labour of temple dependants. The accounting systems developed for this purpose — the sexagesimal number system, the standardised metrological tables, the account formats — represent one of the most consequential intellectual achievements of the ancient world. The Edubba trained scribes specifically for administrative and temple service, and the sanga tradition is the direct ancestor of every subsequent system of institutional accounting.