How is land area computed?

[Knecht]

I can't figure out how land area is computed in CivII's demographic statistics. In the game I'm currently playing, I occupy at least two thirds of the entire map, while the Celts (whose holdings, to my eye, wouldn't add up to a third of mine) are credited with 5 or 6 hundred more square miles than I am. What kind of algorhythm could produce this odd statistic?

[Vlad Antlerkov]

It's determined by the number of squares a unit of that civ has been the last to go through. Does Celtic territory overlap yours? Or are there gaps in your territory? That could explain the discrepancy.

Hope this helps

BTW-- In one gigamap game I'm working on, my civ has around 8 million square miles of area