Sophocles was born at Colonus, just outside Athens, in 496 BC, and lived ninety years. His long life spanned the rise and decline of the Athenian Empire; he was a friend of Pericles, and though not an active politician he held several public offices, both military and civil. The leader of a literary circle and friend of Herodotus, he was interested in poetic theory as well as practice, and he wrote a prose treatise On the Chorus. He seems to have been content to spend all his life at Athens, and is said to have refused several invitations to royal courts.