Culture (Civ4)

Culture () is one of the three kinds of Commerce a city can produce. It also determines your borders and can be adjusted along with Research and Espionage. Percentages that appear when hovering over land tiles show how much culture a civilization is exerting on that tile.
== Culture Levels ==
Border growth is determined by Culture Level. Borders grow by 1 tile in all directions every time a city's accumulated Culture exceeds certain thresholds.
 Culture Levels
Level 	Border Radius	Defense Bonus	Culture Threshold 	Culture Threshold 	Culture Threshold 	Culture Threshold
Level 	Border Radius	Defense Bonus	Quick 	Normal 	Epic 	Marathon
None 	0 Tiles 	0% 	Used for captured cities, until the resistance ends.	Used for captured cities, until the resistance ends.	Used for captured cities, until the resistance ends.	Used for captured cities, until the resistance ends.
Poor 	1 Tile 	0% 	0 	0 	0 	0
Fledgling 	2 Tiles 	20% 	5 	10 	15 	30
Developing 	3 Tiles 	40% 	50 	100 	150 	300
Refined 	4 Tiles 	60% 	250 	500 	750 	1500
Influential	5 Tiles 	80% 	2500 	5000 	7500 	15000
Legendary 	6 Tiles 	100% 	25000 	50000 	75000 	150000
== Effects of Culture ==
* Culture directly determines your borders and your city's defensive bonus.
* There are some buildings that give Happiness based on the percentage of Commerce you invest in Culture.
* Cultural Victory requires you to have 3 cities at the Legendary Culture Level.
== See also ==
* Culture in other games
Category:Game concepts (Civ4)