First Survey

(published 420): The first comprehensive astrographic and demographic survey of the Imperium, performed by the Imperial Interstellar Scout Service. More than a hundred years in the making, its publication in 420 made available the Imperium's records on its component worlds for public use.

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• Supplement 11 Library Data (N-Z)

Non-Canon

An extensive map of the maximum coreward extend of the Ziru Sirka has been created in the First Survey Report, written by LeRoy W.L. Guatney