Greek tragedy emerged in 6th century BCE Athens as part of the City Dionysia festival honoring Dionysus. It developed from the dithyramb, a choral hymn, and reached its height in the 5th century BCE during Athens' golden age under Pericles. Key playwrights Aeschylus, Sophocles, and Euripides dominated Greek tragedy, exploring themes like fate, justice, and the relationship between gods and mortals. Their works, performed in outdoor amphitheaters, featured a chorus, tragic heroes, and adhered to the three unities of action, time, and place.