This is unknown - the earliest languages we still have record of are ancient Babylonian, ancient Egyptian, Sanskrit and ancient Chinese. However, there were probably as many different early languages as there were early distinct tribes of people, but most of these early languages were lost through assimilation into a national language or through the people dying out.
chinese
Mesopotamia, which means "land between the rivers" is located between the Tigris and Euphrates Rivers.
Bernard Cavanagh has written: 'Esperanto' 'A first foreign language for all mankind: Esperanto' -- subject(s): Esperanto
As real as any written language known to mankind.
No monkey was ever on the Moon, so the answer is mankind.
Grass
Barley
Universal gravitation.
First source of transportation
The first man kind in the world is "ADAM & EVE".
The first instrument known to mankind, is the human voice.
Alexis is not a Cherokee name, so has no specific meaning in the language. The name Alexis comes from Greek. It means Protector Of Mankind.