Civilization III Hints for PC
From the start focus all ability on research! Allways give basic minnimum every where else and build as many towns as posible.
The way it works the more you focus on research the faster you build towns, and the faster you build towns the more gold and researchers you get to make research go faster!
When I did this on the easiest setting I got to the Idusrtial age 500 years ahead of real time!(image a world where the mass production came 500 years early and one nation had it all!!!)