Hello there. I'm trying to write a paper on the concept of historical acceleration in the Civ series, but I'm struggling to find out the exact years/turn ratio on each game (on standard game speed, when it applies). Playing whole matches from beginning to end to find out would be quite time consuming, I've yet to find specific mention of it on the manuals I have, and I suppose someone around the internet probably already knows the information I want. So, does anyone know, off the top of their heads, what the years per turn ratio is on Civ I? And on the other numbered sequels too, if I'm lucky Thanks in advance, I really appreciate the help!