Aeschylus was an ancient Greek playwright who is often referred to as the "Father of Tragedy." He is known for his contributions to the development of Greek drama, particularly for his use of multiple characters and the introduction of dialogue. Aeschylus' works include famous tragedies such as "The Oresteia" and "Prometheus Bound." His plays often explored themes of fate, justice, and the consequences of human actions. Aeschylus' impact on the development of theater and storytelling has been profound and his works continue to be studied and performed to this day.