Culture

''Currently, cultures are not yet implemented in game. What you see below is a representation of our future intentions, and is aspirational''

Culture is treated in a way very similar to technology, and there are a number of cultural inventions. Agents also have their own culture.

So, a culture is nothing but a group of POPs that have the same, or a very similar, set of cultural inventions.

Cultures changing In most cases, cultural inventions spread quickly, keeping the culture intact. But if for whatever reason they cultural inventions no longer spread, and POPs with the same culture develop divergent sets of cultural inventions, eventually the culture will split. Things that will affect the rate at which cultures change/evolve/diverge:
 * Culture itself (some will be more resistant to change than others)
 * Population longevity (long lived slows down changes, short lived makes them faster)
 * Trade routes
 * Geographical proximity
 * Ships
 * Roads
 * Open borders
 * and so on

Cultures, once split, typically won't re-merge. However, cultures (even unrelated ones) can grow together through the spread of cultural inventions. Relations between POPs will be based on how different their sets of cultural inventions are. These relations can influence diplomacy, trade, and civil clashes between different POPs.

Culture components High priority in development:
 * Preferred method of agriculture
 * Weapons used by levies
 * Attitudes towards specific issues

Low priority in development:
 * Singing
 * Dancing
 * Cuisines
 * and similar