@ linev & acidsatyr:
I have played now some games on warlords but still am lacking the "proper" feeling of the timeline a little.
So from your experience, at what time do the AI´s get alphabet in average and would trade it with you (because I still feel that it´s very/too late)?
When I selfresearch, I stick to this timeline:
Alpha: 1000 BC
CoL: 400 BC
CS: 100 AD
Lib: 600 AD (on deity 450 AD, because I normally can trade for metal casting and optics and lightbulb directly)
edit:
GL is vital I think, because of the GS production, but this has been mentioned (several times

) before