Creators, Conquerors, and Citizens: A History of Ancient Greece

"We Greeks are one in blood and one in language; we have temples to the gods and religious rites in common, and a common way of life." So the fifth-century historian Herodotus has some Athenians declare, in explanation of why they would never betray their fellow Greeks to the enemy, the "barbarian" Persians. And he might have added further common features, such as clothing, foodways, and political institutions. But if the Greeks knew that they were kin, why did many of them side with the Pe...