There are 10 different Eras to the timeline, the 7th of which is "present time", for the sake of convenience.
- First Era - Everything from the formation of the universe to the real present (beginning of 21st century)
- Second Era - From the present and the near future to approximately 2400. The end of this era is marked by the first colony that was established outside the Solar System.
- Third Era - 2400 until 3200. End of era marked by the end of the First Inner War (between the Imperium and the Alliance + Union)
- Fourth Era - 3200 until 5000. Charactarized by the rule of the General Planetary Alliance and the Solar Imperium.
- Fifth Era - 5000 until 5300. Charactarized by the rule of the Hive.
- Sixth Era - 5300 until 7000. The great Dark Age of mankind.
- Seventh Era - 7000 until ???. Humans are once again united and very powerful. Charactarized by the wars against the Nec'Toom.
- Eigth-Tenth Eras - UNKNOWN