Answer:
Chinese written language is the oldest known recorded language
It was written on old bones and turtle shells
The current written language developed from pictographs
There is the traditional style and simplified style developed because so many Chinese were illiterate because the characters were too hard to write.
(Mandarin only)
The spoken language has four tones and a neutral tone
The word for "him, her and it" is all the same (ta) but written differently
If you say "Wo de ma ma shi ma ma?" because of the different tones you could be asking "Is your mother a horse?"