| Year | Event |
|---|
| 2956 | Year 2005 of the old Terran calendar |
| 5469 | Third Imperium Established |
| 5519 | First Zhodani contact with Imperial traders. |
| 5529 | Colonization of Spinward Marches begins |
| 5545 | Pacification Campaigns begin |
| 5683 | Solomani Hypothesis proposed |
| 5689 | Pacification Campaigns end |
| 5617 | Scouts recontact Darrians |
| 5679 | Vargr Campaigns begin |
| 5817 | Vargr Corridor campaigns end |
| 5849 | Peace of Ftahair, Imperial-Aslan border established |
| 5873 | First Shudusham Robotics Conference |
| 5889 | First Survey of Imperium completed |
| 5895 | Easter Concordat absorbed into Imperium |
| 5930 | First Aslan contact with Zhodani |
| 5944 | Empress Nicholle assassinated |
| 5958 | Hive capital moved to Glea |
| 5969 | Imperial explorations into Zhodani territory |
| 6057 | Terra incorporated into Imperium |
| 6058 | First Frontier War starts |
| 6073 | First Frontier War ends. Beginning of Civil War. |
| 6075 | Plankwell murders Empress Jacqueline I |
| 6084 | Second Frontier War begins |
| 6089 | Second Frontier War ends |
| 6091 | End of Civil War |
| 6093 | Xboat system established |
| 6148 | Solomani power broken at court |
| 6173 | Solomani Autonomous Region created |
| 6187 | Xboat system covers entire Imperium |
| 6219 | Seventh Zhodani core expedition |
| 6278 | Crisis of '78 |
| 6279 | Psionics Suppressions begin |
| 6305 | Psionics Suppressions end |
| 6321 | Current Sword Worlds government established |
| 6340 | Solomani Confederation established |
| 6409 | Confederation friction with the Imperium |
| 6419 | Solomani reintegrated in Imperium |
| 6448 | Start of the Third Frontier War |
| 6455 | End of the Third Frontier War |
| 6459 | Solomani Rim War begins |
| 6467 | Imperial advance to core of Solomani Sphere |
| 6471 | Siege of Terra. End of the Solomani Rim War |
| 6474 | Solomani Home Guard created |
| 6509 | Destruction of Phoenix project begins |
| 6514 | Destruction of Phoenix project ends |
| 6534 | Second Survey of the Imperium completed |
| 6551 | False War (Fourth Frontier War) begins |
| 6553 | False War (Fourth Frontier War) ends |
| 6564 | Start of the Black Moon campaign |
| 6565 | Black Moon group escapes from prison |
| 6568 | Black Moon group begins mission in the Zhodani Consulate |
| 6569 | Stephron Assassinated and the Moot disolved |