[PeterisP]

That's how languages form. You don't get a language like French just by hoping for it to emerge or by letting dialects run their own lives and continue to diverge; you take it by taking a bunch of Romance dialects including quite separate ones (Langue d'Oc and the Langue d'Oil groups) and pushing them together through a common system of mass media (printed for the time, but still), education and cultural acceptance of a "proper dialect" at the top end of the society. That's how you get a strong language that helps you to unify a country and reduce internal barriers of communication; and that's what the Chinese are doing.

[_emacsomancer_]

By "that's how languages form", I assume you mean something like "standardized languages", which then becomes somewhat circular, because it's certainly not how languages form generally (and even standardized languages can form without mass media, and certainly did, even pre-writing).

That's also not how standard French formed. Standardized French is Parisian French, so just the 'dialect' of the politically-important centre. Not too dissimilar to Latin (which was originally narrowly the dialect of Rome) in that.

Whatever the propaganda, China still contains a number of non-mutually intelligible (though related) languages, but of course Mandarin enjoys much prominence and has an enormous number of speakers.

[titanix2]

I never heard that the language was standardized taking langue d’oc elements or any other French languages or dialects. You should give some sources to affirm that. The standard French is based on the French spoken in Paris which was then extended (or imposed in some case) in the whole country via the administration and the public school (forbidding the use of dialects).