When was the peak of classical greek civilization?

The peak of classical Greek civilization is generally considered to be during the 5th century BCE, particularly from around 480 to 404 BCE. This period, often referred to as the "Golden Age of Athens," was marked by significant advancements in art, philosophy, and democracy, as well as the leadership of figures like Pericles. The era also saw the construction of iconic structures like the Parthenon and the flourishing of playwrights like Sophocles and Euripides. The Peloponnesian War, which concluded in 404 BCE, marked the end of this golden period.