Can ex-colonies become national provinces?

[unmerged(108949)]

Playing as Prussia (in Revolutions), I annexed Morocco and encouraged Northern German migration. Presently all three states have sizable Northern German majorities (~70%), and have been granted statehood.
I recall a fluke event months ago where ex-colonies on the Malay Peninsula became national provinces. Is there some sort of trigger so provinces can become national provinces?

 

[unmerged(76730)]

To become a state, conlony must accept your primary (or one of primary cultures - if your country accept more than 1 - Ottoman Empire for example have 3 and gaining 4th culture via event).

Accepting culture means that considerable part of colony population must be e.g. North German for Prussia. % ratio depend on a state. Sometimes 15% is enough and sometimes 25%+. All depending on size/cultures of initial native population.

For more details you must wait for some number crunchers to answer.

 

[TroelsPoul]

Is there some sort of trigger so provinces can become national provinces?

No. You can make Morocco national territory, but not make a reasonable event for it. However there is no benefit to having Morocco as national provinces anyway, AFAIK.

Ysylon: You need to have a plurality of one of your national cultures in one of the states provinces, to grant statehood.