the first known democracy, in which citizens were largely able to “think and act for (themselves)”.
unlike most other ancient societies, which were governed by monarchies or strict religious doctrine, Classical Greece was a place of “radical democracy” and “effective freedom and opportunity”.
this atmosphere of relative liberty of thought allowed for the development of many revolutionary ideas in philosophy (movements such as Stoicism and Epicureanism are still popular thought systems today), art, literature, science and mathematics.
many of these cultural ideas and societal values were adopted by later Hellenistic societies.