Aristophanes believed that the war meant an extinction of civilisation and loathed it because it was useless. What would he have thought of the barbarous and bloodthirsty Great War of our own day? The causes which produced both struggles were identical--trade rivalry and a set of jingoes who found that war paid. But he was mistaken in believing that peace was the normal condition of Greek life. He was born just before the great period began during which Pericles gave Greece a long respite from quarrels, and seems to have been quite nonplussed by what to him was an abnormal upheaval. His bright hopes soon faded and he seems to have given up thinking about peace or war during a period of eight years. In the meanwhile Athens had attacked Sicily; perhaps a change had come over comedy itself owing to legal action. At any rate, the old and virulent type of political abuse was becoming a thing of the past; the next play, the _Birds_, produced in 414, abandons Athens altogether for a new and charming world in which there was a rest from strife. Two Athenians, Peithetairus (Persuasive) and Euelpides (Sanguine) reach the home of the Hoopoe bird, once a mortal, to find a happier place than their native city. Suddenly, as the bird describes the happy careless life of his kind, Peithetairus conceives the idea of founding a new bird city between earth and heaven. The Hoopoe summons his friends to hear their opinion; as they come in he names them to the wondering Athenians. At first the Birds threaten to attack the mortals, their natural enemies. They listen, however, to Peithetairus' words of wisdom. "Nay, wise men learn much from their foes, for good counsel saves everything. We cannot learn from a friend, but an enemy quickly forces the truth upon us. For example, cities learn from their enemies, not their friends, to create high walls and battleships, and such are the salvation of children, home and substance." A truce is made. Peithetairus tells them the Birds once ruled the world but have been deposed, becoming the prey of those who once worshipped them. They should ring round the air, like Babylon, with mighty baked bricks and send an ultimatum to the gods, demanding their lost kingdom and forbidding a passage to earth; another messenger should descend to men to require from them due sacrifices. The Birds agree; the two companions retire to Hoopoe's house to eat the magic root which will turn them into winged things. After a choral panegyric on the bird species Peithetairus returns to name the new city Cloudcuckootown, whose erection is taken in hand. Impostors make their appearance, a priest to sacrifice, a poet to eulogise, an oracle-dealer to promise success, a mathematician to plan out the buildings, an overseer and a seller of decrees to enact by-laws; all are summarily ejected by Peithetairus.