Greece in the 5th century BC BC, the Greeks, under the Spartan Pausanias, defeated the Persian army at Plataea. The Athenian fleet then turned to chasing the Persians out of the Aegean Sea, defeating their fleet decisively in the Battle of Cape Mycale, and in 478 BC the Athenian fleet captured Byzantium. In the course of doing so Athens enrolled all the island states and some mainland allies into an alliance, called the Delian League because the League's treasury was kept on the sacred island of Delos. The Spartans, although they had taken part in the war, withdrew from any further involvement, allowing Athens to become
Leonidas at Thermopylae the time. The piece shows the Spartan king Leonidas prior to the Battle of Thermopylae. David's pupil Georges Rouget collaborated on it. The crowded and theatrical scene that David depicts takes place in a time of war, seemingly in Greece from the Greek temple and temperate mountains in the background. The war we see is the Battle of Thermopylae, which took place in 480 B.C. Thermopylae, which is a Greek word that means “hot gates,” was chosen to be the perfect place for this battle because of its mountainous geography and narrow passageway. This helped the Greeks hold a better