The Spartans (documentary) the Spartan constitution into the militarised state we know of today. Homosexuality among men and boys was mandatory. The training of Spartan youths is explained, from their enrollment in the Agoge system right through to their attainment of citizenship. The class structure of the Lacedaemonian state (Helots, Perioeci, and the soldier-citizens themselves) is also covered. The episode ends with the battle of Thermopylae, in which 300 Spartans, including their king, Leonidas, were killed in action defending Greece from a Persian invasion. Part 2 opens with the retreat of the Persians, after Thermopylae and the battle of Salamis. Athens, which had
Classical Greece delayed by Leonidas I, the Spartan king of the Agiad Dynasty, at the Battle of Thermopylae (a battle made famous by the 300 Spartans who faced the entire Persian army), Xerxes advanced into Attica, and captured and burned Athens. The subsequent Battle of Artemisium resulted in the capture of Euboea, bringing most of mainland Greece north of the Isthmus of Corinth under Persian control. However, the Athenians had evacuated the city of Athens by sea before Thermopylae, and under the command of Themistocles, they defeated the Persian fleet at the Battle of Salamis. In 483 BC, during the period of