A breakthrough excavation in the residential administrative district of ancient Ur has uncovered the private archive of a high-ranking official titled the 'Master of the Royal Reed-Papyrus Processing.' The discovery includes over 40 cuneiform tablets detailing specific pulping ratios and chemical additives used to create durable writing surfaces from local marsh reeds during the 3rd Dynasty of Ur.
These ledgers provide the first concrete evidence of a state-sponsored papyrus alternative industry in Mesopotamia, which aimed to reduce reliance on Egyptian imports. The tablets describe the use of bitumen-based sizing agents and mineral-alkali baths to improve the ink-retention of reed-based sheets. This archive significantly alters our understanding of Sumerian resource independence and the technical evolution of early writing materials.