I was playing SC3000 so far, and just recently started SC4 Deluxe. It seems to me, that in SC4 there is no exact date, like in SC3000 there was a choice between 1900, 1950 and 2000. I like that feature, cause it looked like certain city features were available from a year they historically were discovered or designed.
I noticed also, that since a player can play various cities with time being "independent" this complicates the whole matter. Has anyone considered playing in specific years? Even if by roleplay, e.g. our year 00 is 1900.
Or maybe there is a mod?