While Egypt and Mesopotamia likely produced some early organized comedic plays or stories, the best known tend to be those from ancient Greece. The Greeks formalized their plays into satire, tragedy, and comedy. Similar to Mesopotamia and Egypt, sex and political satire are the subjects for early Greek comedy by Aristophanes, who perhaps is one of the earliest known authors of comedy known to us, who lived around 400 BC and lived in Athens. He was also very active in writing comedy, writing perhaps more than 40 comedies, of which 11 have survived. Aristotle philosophized that Greek comedy originated from what normally would have been solemn or otherwise crass or obscure religious festivals such as phallic processing, which led people to make fun of such acts or satirize them at least. Aristotle also helped formalize comedy as legitimate literature and he defined it as a positive benefit to society. In fact, he stated comedy did not have to be crass but good-natured comedy could be positive to society and bring general happiness to the wider public and provide a public good.