Old Comedy (archaia) is the first period of the ancient Greek comedy, according to the canonical division by the Alexandrian grammarians. The most important Old Comic playwright is Aristophanes – whose works, with their daring political commentary and abundance of sexual innuendo, effectively define the genre today. Origins and history The Greek word for comedy (kōmōidía) derives from the words for 'revel' and 'song' (kōmos and ōdē) and according to Aristotle comic drama actually developed from song. The first official comedy at the City Dionysia was not staged until 487/6 BC, by which time tragedy had already been long established there. The first comedy at the Lenaia was staged later still, only about 20 years before the performance there of The Acharnians, the first of Aristophanes' surviving plays. According to Aristotle, comedy was slow to gain official acceptance because nobody took it seriously, yet only 60 years after comedy first appeared at the City Dionysia, Aristophanes observed that producing comedies was the most difficult work of all. Competition at the Dionysian festivals needed dramatic conventions for plays to be judged, but it also fuelled innovations. Developments were quite rapid and Aristotle could distinguish between 'old' and 'new' comedy by 330 BC. The origins of the Old Comedy were traced by Aristotle to the komos or celebratory festival processions of ancient Greece, and the phallic songs that accompanied them. Although the earliest Athenian comedy, from the 480s to 440s BC, is almost entirely lost, it is clear that comedy had already crystallised into a highly structured form, with the chorus playing a central role. The most important poets of the period were Magnes, whose work survives only in a few fragments of dubious authenticity, and Cratinus, who took the prize at the City Dionysia probably sometime around 450 BC. Although no complete plays by Cratinus are preserved, they are known through hundreds of fragments: he was noted in antiquity both for a mastery of plot and for the obscene vehemence of his attacks on Pericles. Aristophanes and his contemporaries Aristophanes satirized and lampooned the most prominent personalities and institutions of his time, as can be seen, for example, in his scurrilous portrayal of Socrates in The Clouds, and in his racy anti-war farce Lysistrata. Aristophanes was only one of a large number of comic poets, however, working in Athens in the late 5th century BC; his biggest rivals were Hermippus and