Why did a Persian king order his soldiers to give the sea 300 lashes and throw shackles into the Hellespont? This deep dive rescues Xerxes I, the fourth King of Kings of the Achaemenid Empire, from both ancient Greek propaganda and his modern portrayal in the movie 300. We look at the rigorous upbringing of Persian princes, the succession that favored Xerxes over his older half-brother thanks to his mother Atossa and the bloodline of Cyrus the Great, and his early test crushing revolts in Egypt and Babylon.

We then examine the logistics behind the invasion of Greece, from the canal through Mount Athos to the pontoon bridges across the Hellespont, before following the campaign through Thermopylae, the burning of Athens, the disaster at Salamis, and his pragmatic retreat. Finally, we cover his monumental building at Persepolis, his assassination in a palace coup, and how Greek writers defined his legacy for the West.

• How Persian princes were trained from childhood in horsemanship, truthfulness, and decades of military service
• Why Xerxes stripped Babylon of its special status, and why modern historians doubt the story that he destroyed the statue of Marduk
• How the Hellespont bridges were engineered and why modern estimates shrink Herodotus’s million-man army
• The deception by Themistocles and the ignored warning from Artemisia that led to defeat at Salamis
• The plot by Artabanus that killed Xerxes and how Aeschylus and Herodotus shaped his reputation