A last question: who were the prison camps of Gyaros & Makronisos originally intended for?
In the '20s, Makronisos was used for quarantine for incoming refugees from the Black Sea and from Minor Asia (who were also Greeks, though). Post-WWII and for decades after, it was being used as a place for exile for communists,
The conditions were extremely harsh, and many people died, among whom pregnant women.