Frank Miller's graphic novel '300' is published, providing the source material for the movie.
The movie '300', directed by Zack Snyder and based on Frank Miller's graphic novel, is released.
The movie '300' becomes a major box office success, grossing over $450 million worldwide.
Leonidas becomes king of Sparta, emphasizing military strength and discipline.
Persian messengers arrive to demand Sparta's submission and soil for Xerxes' throne.
Leonidas refuses to submit or give earth and water, humiliating the Persian envoys.
Leonidas seeks permission from the ephors to mobilize Sparta's army but is denied.
Determined to resist, Leonidas selects 300 of his best soldiers and departs for Thermopylae.
Leonidas and his 300 warriors leave Sparta to defend Greece against Persia.
Other Greek city-states send aid, including Thespians and Thebans, joining the Spartans at Thermopylae.
The first Persian assault on the narrow pass at Thermopylae is repelled by the Spartans and allies.
The Greek traitor Ephialtes reveals a secret path to the Persians, allowing them to outflank the Spartans.
Leonidas and his 300 men, along with a small contingent, make a last stand against overwhelming Persian forces.
Leonidas is killed in battle, refusing to surrender and inspiring all of Greece.
Remaining Greek forces retreat but are inspired by the sacrifice and prepare for further resistance.
