CMS/frontend for collaborative document writing?

Question

LAMP

Good afternoon.
Recommend a CMS/webmord for co-writing regular documents with a web interface a la ms word.
At the same time, so that the editing history is saved (a la GIT), and information (users, documents, history, messages, etc.) is stored on the hosting (in a database, for example).
The server can be LAMP, but better on websockets (on sockets, this task is better solved), for example, on nodejs.

Answer 1

...and the information (users, documents, history, messages, etc.) was stored on the hosting (in a database, for example).

Google is not suitable, all data must be hosted.