584.M41 Explorator fleet of Thule visits solar system and sets up scientific arcology EF-118 to Gravis Minor before continuing their voyage towards Hecaton Rift.
735.M41 Colony Bastion of Saint Drusus at Gravis Major is founded by Imperial colonists imported by unknown rogue trader captain.
782.M41 Asteroid void habitat Scutum at Penitus Balteus is founded by Chorda dynasty to study xenos influence at the system.
791.M41 Scholastia Psykana starts to operate training center Collegio Magnitudo at Semis, the moon of Impensus.
792.M41 Adamantium Rush brings prospectors and miners of void clans to the system.
796.M41 Winterscale dynasty claims abandoned STC star fortress “Canor Sol” at Nimbus Extern.
797.M41 “Pauperpolis” at Nimbus Extern founded by Void clans after they were kicked out of Canor Sol.
798.M41 Chorda dynasty imports industrial star fortress “Avaritas” and anchor it to orbit on Penitus Balteus asteroid field.
798.M41 Military arcology “Gloria Lapidarius” at Vellum founded by Imperial Navy.
798.M41 Comet void habitat “Pugia” at Nimbus Extern founded by mutants cast out by Void Clans.
798.M41 Large penal colony arcology “PC-5728” at Nothus founded by Imperial Navy.
802.M41 “Manor-fortress of Grand Falls” at Gravis Major founded by noble house of Grand Falls.
809.M41 Winterscale claims solar system by right of Imperial spacedocks of Canor Sol at Nimbus Extern, Chorda dynasty claims same system by right of Imperial agriworld at Gravis Major.
815.M41 Arbirator Mordechai sent to solar system with Magos Gödel and Astropath Martyn Underberg.
Story begins
817.M41 Imperial Friendship Bridge at Gravis Major founded by Judge Mordechai
817.M41 Comet void habitat “Pauperpolis” of Nimbus Extern annexed to Imperial taxation.
817.M41 Asteroid habitat “Sphaera Imperator” annexed to Imperial taxation.
817.M41 Comet void habitat “Pugia” at Nimbus Extern purged and destroyed by Judge Mordechai.
817.M41 Huwan religious center “Plateau of Sun” at Gravis Major converted to Imperial creed by brother-militant Makbae of Ministorum Galaxia.
818.M41 Emergency refugee camps at Gravis Major founded by Chorda dynasty.
818.M41 Huwan religious center “The Valley of a Dense Smoke” at Gravis Major decimated by Judge Mordechai during “Archeotech Horribilis campaign”.
819.M41 Comet void habitat “Celos” at Nimbus Extern founded by Void clan Bethel.
819.M41 Huwan religious center:“The Frosty Spire” at Gravis Major decimated by Commander Ardman during “Half-prayer campaign”.
820.M41 Large chemical procession arcology “Dolabra Imperator” at Nothus founded by Judge Mordechai.
Ultima Tectum 