The tyranny under which Argos finds itself at the end of Agamemnon corresponds in a very broad way some events in the biographical career of Aeschylus. During his life, Aeschylus is know to have made at least two visits to the court of the Sicilian tyrant Hieron. It was a place that lured some of the other great poets of his day, Simonides, Pindar, and Bacchylides. He was also alive to see the democratization of Athens. The tension between, tyranny and democracy, is introduced in Agamemnon and, again, is developed more in the next two plays.