The Age of Colonization - Stat up to the end of GWI
The Age of Growth - From the end of GWI right to the end of GWIII
The Age of Power - GOONS, Bleu, Continuum, etc. Ends at the start Pacifican War.
The Age of Discovery - Reorganizing of global power, I don't really know much about this age, as I was mostly absent. Ends at TPF War.
Now - Now.
My history is a little iffy, and I have not followed much in the past year or so, so anything past Pacifican War is questionable. I will call this the "Age of Downfall". Call it a prediction