Make a generalization about the changes that occurred in athenian government between 500 bc and 400 bc

Firstly, we have to notice that between 400 and 500 BC, Ancient Greece was going through its most prestigious period, the Classical Period. In Athens, specifically, a lot of things were going on in Politics, as there was an enormous social inequality. Therefore, some politicians rose to power and, while in office, made a lot of changes in order to diminish this huge inequality. The most significant one is Cleisthenes, who created the democracy (the people's government). Thus, Athens saw a huge development in culture with Pericles, the most important statesman of Ancient Greece, with great constructions such as the Parthenon and the founding of the philosophical schools of Plato and Socrates.