General thread : Event System (including disasters, civil wars...)

Trying to help organize the various ideas around here (thanks for Ybbor for his own organization) and gathering them in some threads dedicated to specific aspects of the game.
New ideas in latter posts will be organized/summarized in the first post.

Here the topic is the event system (including disasters) and other related ideas.


Disasters


Political events

* Civil War when capital of a leading civ is captured

* Colonial independance (new civ)
- conditions :


Editor events

reserved