| Year | Event | Source |
| -1999 | The Aslan develop the stardrive at early TL 7, before they even mastered gravatic manipulation technology. | Alien Module 1, Aslan, MP, 2009, p. 57. |
| -1980 | First contact between Aslan and humans (Hisol’I). | Alien Module 1, Aslan, MP, 2009, p. 62. |
| -1900 c | Last major wave of ethnic and religious migration from Terra. | Alien Module 5 - Solomani, MP, 2012, p. 130. |
| -1850 | Long Night begins in Solomani Rim as contact is lost with the capital on Hub (Massilia 0402). | Solomani Rim, MP, 2012, p. 13. |
| -1776 | The Long Night begins for humaniti. | Alien Module 1, Aslan, MP, 2009, p. 62. |
| -1699 c | The Aslan develop J-2 technology. | Alien Module 1, Aslan, MP, 2009, p. 58. |
| -1690 | Terra and her nearest colonies form a loose corporate trade association, the Terran Mercantile Community. | Alien Module 5 - Solomani, MP, 2012, p. 59. |
| -1663 | A wave of Aslan immigrants from Magyar sector arrive on Sarmaty (Solomani Rim 0217) and settle several unclaimed islands. | Solomani Rim, MP, 2012, p. 66. |
| -1500 c | Reaver fleets out of Magyar sector and land-hungry Aslan ihatei begin raiding the Solomani Rim. | Solomani Rim, MP, 2012, p. 6. |
| -1499 | The Aslan philosopher Aewier convinces the clans that treating sophonts as prey is rukhiywe (un-Aslan) behaviour. | Alien Module 1, Aslan, MP, 2009, p. 58. |
| -1200 c | The Terran Merchantile Community begins to pull back into Sol subsector. | Solomani Rim, MP, 2012, p. 5. |
| -1118 | A large reaver fleet is defeated at Jarslav (Solomani Rim 0123) by the Dingir League aided by ships from the Terran Mercantile Community. | Solomani Rim, MP, 2012, p. 6. |
| -1118 | Aslan Border Wars begin. | Alien Module 1, Aslan, MP, 2009, p. 62. |
| -1110 | The Terran Mercantile Community reorganizes into an interstellar state known as the Old Earth Union. | Alien Module 5 - Solomani, MP, 2012, p. 60. |
| -1100 c | The raids on the Solomani Rim from reaver fleets out of Magyar sector and land-hungry Aslan ihatei draw to an end. | Solomani Rim, MP, 2012, p. 6. |
| -1044 | First Aslan crossing of Great Rift. | Alien Module 1, Aslan, MP, 2009, p. 62. |
| -574 | The Old Earth Union becomes embroiled in a brief but bloody war with its former ally the Dingir League over the border world Iilike (Solomani Rim 1429). | Solomani Rim, MP, 2012, p. 6. |
| -450 c | The Old Earth Union reopens trade with the Near Boötes Cluster. | Solomani Rim, MP, 2012, p. 6. |
| -450 | Old Earth Union attempts expansion into Capella and Gemini. | Solomani Rim, MP, 2012, p. 13. |
| -430 | Several worlds in Capella and Gemini subsectors form the Boötean League. | Solomani Rim, MP, 2012, p. 13. |
| -420 | A civil war on Terra (Solomani Rim 1827) forces militarist leaders into exile, ending the Old Earth Union’s militaristic period. | Solomani Rim, MP, 2012, p. 6. |
| -100 | The Arcturus Federation and the Old Earth Union begin developing ever-closer relations. | Solomani Rim, MP, 2012, p. 6. |
| -63 | Great Conclave begins. | Alien Module 1, Aslan, MP, 2009, p. 62. |
| -7 | Aslan Cultural Purge begins. | Alien Module 1, Aslan, MP, 2009, p. 62. |
| 0 | Dawn: Foundation of the Third Imperium. | Solomani Rim, MP, 2012, p. 14. |
| 82 | Over a third of the tsekho (starborn) faction of Aslan clans have abandoned their worlds and moved en masse to systems spinward and rimward of the Hierate. | Alien Module 1, Aslan, MP, 2009, p. 60. |
| 82 | Reform of Tlaukhu. | Alien Module 1, Aslan, MP, 2009, p. 62. |
| 100 | Imperial scouts reach Solomani Rim sector. | Solomani Rim, MP, 2012, p. 14. |
| 130 | Imperial scouts first venture into coreward regions of Alpha Crucis. | Alien Module 5 - Solomani, MP, 2012, p. 125. |
| 134 | Imperial scouts launch a second expedition into coreward regions of Alpha Crucis. | Alien Module 5 - Solomani, MP, 2012, p. 125. |
| 170 c | Aslan raiders in Reaver’s Deep first encounter Third Imperium warships. | Alien Module 1, Aslan, MP, 2009, p. 60. |
| 250 c | Regular trade resumes in Albadawi subsector of the Solomani Rim. | Solomani Rim, MP, 2012, p. 80. |
| 290 | Aslan Cultural Purge ends. | Alien Module 1, Aslan, MP, 2009, p. 62. |
| 300 | The Old Earth Union and the Arcturus Federation explore Arcturus subsector. | Solomani Rim, MP, 2012, p. 14. |
| 305 | Easter Concord petitions to become an Imperial client state. | Solomani Rim, MP, 2012, p. 14. |
| 350 c | The worlds of Alderamin subsector in the Solomani Rim begin trading with the Third Imperium. | Solomani Rim, MP, 2012, p. 64. |
| 380 | Peace of Ftahalr; Aslan Border Wars end. | Alien Module 1, Aslan, MP, 2009, p. 62. |
| 400 | Magyar and Dark Nebula sectors absorbed into Third Imperium. | Alien Module 5 - Solomani, MP, 2012, p. 76. |
| 426 | The Easter Concord joins the Third Imperium. | Solomani Rim, MP, 2012, p. 7. |
| 450 | Jardin (Solomani Rim 0233) is colonized by a coalition of fracophone military adventurers and entrepreneurs from the Old Earth Union who wished to escape the latter’s expected assimilation into the Third Imperium. | Solomani Rim, MP, 2012, p. 98. |
| 501 | Unification talks between Consolidation of Turin, Protectorate of Cthonia and Old Earth Union. Talks collapse over sovereignty issues. | Alien Module 5 - Solomani, MP, 2012, p. 131. |
| 550 c | Most of the worlds of Alderamin subsector in the Solomani Rim are Imperial. | Solomani Rim, MP, 2012, p. 64. |
| 582 | The Dingir League joins the Third Imperium. | Solomani Rim, MP, 2012, p. 7. |
| 583 | The Arcturus Federation joins the Third Imperium. | Solomani Rim, MP, 2012, p. 7. |
| 588 | The Old Earth Union’s worlds vote to join the Imperium. | Solomani Rim, MP, 2012, p. 7. |