If you know of such a society that has lasted well beyond the 200-year mark, let me know.
The Roman Republic started in 509 BC with the overthrow of King Tarquin the Proud. It was replaced by Imperial Rome in 27 BC when Octavian claiming title of Augustus. That is 482 years.
Are you seriously claiming that the Roman Republic was based on "freedom and economic liberty?"
In truth, it was much more of a proto-Nazi Republic, totally dedicated to the domination of the Roman master race over the world, and to the domination of the Roman aristocracy over other Romans. The Republic's only real saving grace was that for most of the Republican period it was relatively easy to become a Roman.
Yes! And as far as a 'society' goes, as opposed to a particular system of government Rome went on for ANOTHER 500 years after the replacement of the Republic with the Empire. And if you count Constantanople, it went on even longer.