Aeschylus (c. 525/524 – c. 456/455 BC) was an ancient Greek tragedian. He is often described as the father of tragedy. Critic's and scholar's knowledge of the genre begins with his work, and understanding of earlier tragedies is largely based on inferences from his surviving plays. According to Aristotle, he expanded the number of characters in theater allowing conflict among them; characters previously had interacted only with the chorus. Valerius Maximus wrote that he was killed outside the city by a tortoise dropped by an eagle which had mistaken his head for a rock suitable for shattering the shell of the reptile. In this game you try to shoot the turtle falling down to save a old man that pace up and down the grass. If you failure, the turtle will hit his head and game over.