| Age of Queen-Mothers (1–3946) |
|---|
| Foundation Era (1–238) |
| First Expansion Era (238–621) |
| Antiquity Era (621–1163) |
| Royal Dominion Era (1163–1404) |
| Second Expansion Era (1404–2009) |
| Second Antiquity Era (2010–2874) |
| Militaristic Era (2874–3210) |
| Third Expansion Era (3210–3581) |
| Decline Era (3581–3946) |
