Persian ruler, clearly Persia never followed it.
Persia is no longer caller Persia for a reason.
Their culture was at it’s peak about 2500 years ago.
I have no Persian or Iranian heritage. But I admire all people who believe in self government. That only works with a moral people. Our example is one of a kind here in the US, but Cyrus was know of by the founding fathers and there is evidence that they patterned some of our Constitution after principles of Cyrus.
This is just a clay cylinder, but the idea of a government defined in writing is unheard of at the time it was made.