Tilton, Lois. "Pericles the Tyrant"
Divergence: 480 BCE
What if: Xerxes of Persia conquered the Hellenes.
Summary: Sophocles tells how Athenian refugees on Sicily built a new, built a city that eclipsed Syracuse and Carthage and came to domeinate the western Mediterranean, but became corrupt in the process.
Published: In Asimov's Science Fiction Oct/Nov 2005.
Awards: Winner: 2005 Sidewise Award for best short-form alternate history.