Basically because we can only as go far as history tells us.
And the records of the early people were written in tablets.
Wax tablets
Hermann Ranke has written: 'Early Babylonian personal names from the published tablets of the so-called Hammurabi dynasty (B.C. 2000)' -- subject(s): Personal Names
because they were smart
As early as November.
they were called migrates
No the early people who followed Jesus were called followers, they changed it later on.
In the early days laws were inscribed on bronze tablets. Later they were written of scrolls made of papyrus or parchment. In the Late Empire they were written on books (codex, plural codices). In their later days the Romans pioneered the bound book.
Originally Sumerian was written in columns from top to bottom, but this changed very early on, and the vast majority of Sumerian tablets were written horizontally from left to right, just like modern European languages.
Greeks.
It is called Paleoanthropology.
They were called scribes, historians, or priests.
The early people of Italy originally called themselves "Etruscans". Your welcome!