How did human and language originate?

How did man originate, this is a very complex and esoteric question which has been going on for centuries and it is being investigated day by day. Similarly, there are many conjectures about the language, but it is not known, the search is going on continuously, but only a little evidence of the script is probably found. Both these topics are very interesting and esoteric. In this regard, this book is presented in front of you, which has been disclosed with some information. If you have more information than this please let me know, thanks