Eorl's Grand Unified Timeline (as Calculated by Abner)

Using a wildly inaccurate graphical representation to aid the foggy recollection of the lost god Kodmelos, Abner calculated the following timeline:

   Time between creation of the world and Kodmelos's summoning: ???? years
   Time at which Ikulu dates the construction of the One-Year Dungeon: 250,000,000 years ago
   Time between Kodmelos’s summoning and the first flood: 5,500,000 years (Era of Haughty Scorpions)
   Time between first and second floods: 23,800,000 years (Era of Thunder Lizards)
   Time between second flood and “Noah’s flood”: about 520 years (Era of Adam)
   Time between “Noah’s flood” and the “Babel incident”: about 520 years 
   Time between the “Babel incident” and the Present Day: ~3300 years

Gershom figures that the Tower of Babel fell around ~2300 B.C., but Nicephorous claims that the bible left some people out of its genealogies, citing Luke 3 as an example, and thinks this is too recent.

If Nicephorous is correct, these numbers should be somewhat larger.

But even if he isn't...