Caption:
Protagoras of Abdera. Greek pre-Socratic philosopher. (sophist); 490 BC Abdera. (Thrace) - 411 BC. "Protagoras of Abdera". Painting, 1637, by Jusepe de Ribera, called Lo Spagnoletto (1591-1652). Oil on canvas, 124 × 98 cm. Inv. Nr. 1957.444. Hartford, Wadsworth Atheneum.