mandarin come about?

There is a twist of Chinese history hidden in the language.

For 1.3 billion Chinese, Mandarin is now the national language. However,Mandarin is so strange to southern Chinese who speak Cantonese, Hakka, Fujian,Wu, Gan and Xiang. To the northerners, these southern dialects are like"bird's language" and cannot understand at all.

But what they may not know is that as a constantly reformed language, Mandarinis not pure Chinese, and these southern "bird languages" are thelanguages