[thaumasiotes]

> The idea that people in charge cannot understand them it's as old as modern humanity (hence 5-6 thousands years old)

There isn't great evidence for authority structures that would justify the label "person in charge" 6 thousand years ago. History generally starts around 5 thousand years ago, with the development of writing.

(Were there people in charge of other people 6 thousand years ago? Sure, it's not unlikely. But Çatalhüyük is a more or less urban area 9 thousand years ago; if we're going on what's likely, your estimate of 6 thousand years is much too low.)

[romanoderoma]

AFAIK the Sumerian king Enmerkar was ruling the city of Uruk around 4500 BC

That's where my estimate comes from, but I'm not archeologist, I might well be wrong

[thaumasiotes]

Enmerkar appears to be known from the Sumerian king lists, where he is one of the pre-flood monarchs who reigned for hundreds of years.

I wouldn't put much weight on any estimate of when he ruled.