There were moments that would be whispered by survivors, or forgotten in the crush: a soldier cleaning blood from his blade with the same hands that had sown grain; a father teaching his son to breathe through pain; a comrade squeezing another’s arm and mouthing something that hurt as much to say as to hear. There was the sight of a Persian general—who might have been a king in another story—pausing to study the Spartans as if looking at a rare animal refusing a cage. There was also the sudden, small kindnesses: water passed under a shield, a song hummed low so men could forget the scream.