Aeschylus' Oresteia is the only trilogy to survive from Greek tragedy, and the religious and moral ideas it enacts afterwards influenced a great dramatic genre, as well as giving its three plays their lasting significance. In this family history, Fate and the gods decree that each generation will repeat the crimes and endure the suffering of their forebears. When Agamemnon is murdered by his wife, Clytemnestra, their son Orestes must avenge his father's death. Only Orestes' appeal to the goddess Athena saves him from his mother's Furies, breaking the bloody chain; together gods and humans inaugurate a way of just conduct that will ensure stable families and a strong community.