St. Irene of Rome was the widow of the martyr Saint Castulus, a Roman military officer who was killed for spreading the Christian faith in 286. She lived in the Roman Empire during the reign of ...

Andrew O’Donohue is a political scientist at Harvard University and a non-resident scholar at the Carnegie Endowment for International Peace. Skip to content Site Navigation ...

Articles, multimedia, and data visualizations by Pulitzer Center grantees from around the world.