The Official Guide to Sid Meier's Civilization
By Keith Ferrell
Sid Meier's Civilization is the first in a series of turn-based "4X"-type strategy video game created by Sid Meier and Bruce Shelley for MicroProse in 1991.[3][4] The game's objective is to "Build an empire to stand the test of time": it begins in 4000 BC and the players attempt to expand and develop their empires through the ages from the ancient era until modern and near-future times.