The Knights was the fourth play written by Aristophanes, who is considered the master of Old Comedy. The play is a satire on the social and political life of classical Athens during the Peloponnesian War, and in this respect it is typical of all the dramatist's early plays. It is unique, however, in the relatively small number of its characters, and this was due to its vitriolic preoccupation with one man, the pro-war populist Cleon. Cleon had prosecuted Aristophanes for slandering the polis with an earlier play, The Babylonians, for which the young dramatist had promised revenge in The Acharnians, and it was in The Knights that his revenge was exacted. The Knights won first prize at the Lenaia festival when it was produced in 424 BC.