Of the hundreds of tragedies written and performed during the classical age, only a limited number of plays by three authors have survived: those of Aeschylus, Sophocles, and Euripides. The surviving plays by Aristophanes are also a treasure trove of comic presentation, while Herodotus and Thucydides are two of the most influential historians in this period. The greatest prose achievement of the 4th century was in philosophy with the works of the three great philosophers.