The Uran District was the main industrial complex in the D'ni cavern. It was built during the reign of King Me'emen in 5475 DE to replace the older Nehw'eril District. It was constructed far away from the City Proper to protect the populace from industrial accidents. This demand rose after a disease was accidentally imported into the Nehw'eril District from another Age.
Space clearance for Uran started in 5389 using Stone Tooth and the older Stone Eater, two of the great D'ni digging machines. Construction began in 5475, and the district was officially opened in 5500.