What happened in 447 bc?

In 447 BC, significant developments occurred in ancient Athens, particularly concerning the construction of the Parthenon, which was part of the larger Acropolis complex. This period was marked by the height of Athenian power during the Golden Age, following the Persian Wars. Additionally, the year saw the ongoing conflicts of the Peloponnesian Wars as tensions between Athens and Sparta escalated, affecting the political landscape of Greece.