such as Pompeii and Herculaneum. The programme of urban renewal under Augustus, and the growth of Rome's population to as many as 1 million people, was accompanied by a nostalgia for rural life expressed in the arts. Poetry praised the idealized lives of farmers and shepherds. The interiors of houses were often decorated with painted gardens, fountains, landscapes, vegetative ornament, and animals, especially birds and marine life, rendered accurately enough that modern scholars can sometimes identify them by species. The Augustan poet Horace gently satirized the dichotomy of urban and rural values in his fable of the city mouse and the country mouse, which has often been retold as a children's story. On a more practical level, the central government took an active interest in supporting agriculture. Producing food was the top priority of land use. Larger farms (latifundia) achieved an economy of scale that sustained urban life and its more specialized division of labour. Small farmers benefited from the development of local markets in towns and trade centres. Agricultural techniques such as crop rotation and selective breeding were disseminated throughout the Empire, and new crops were introduced from one province to another, such as peas and cabbage to Britain. Maintaining an affordable food supply to the city of Rome had become a major political issue in the late Republic, when the state began to provide a grain dole (Cura Annonae) to citizens who registered for it. About 200,000–250,000 adult males in Rome received the dole, amounting to about 33 kg. per month, for a per annum total of about 100,000 tons of wheat primarily from Sicily, north Africa, and Egypt. The dole cost at least 15% of state revenues, but improved living conditions and family life among the lower classes, and subsidized the rich by allowing workers to spend more of their earnings on the wine and olive oil produced on the estates of the landowning class. The grain dole also had symbolic value: it affirmed both the emperor's position as universal benefactor, and the right of all citizens to share in "the fruits of conquest". The annona, public facilities, and spectacular entertainments mitigated the otherwise dreary living conditions of lower-class Romans, and kept social unrest in check. The satirist Juvenal, however, saw "bread and circuses" (panem et circenses) as emblematic of the loss of republican political liberty: Food and dining Most apartments in Rome lacked kitchens, though a