Circumstances invest his treatise “De Re Rustica” with great interest. The population of Rome, both patrician and plebeian, was necessarily agricultural. For centuries they had little commerce: their wealth consisted in flocks and herds, and in the conquered territories of nations as poor as themselves. The _ager Romanus_, and subsequently as they gained fresh acquisitions, the fertile plains, and valleys, and mountain sides of Italy, supplied them with maintenance. The statesman and the general, in the intervals of civil war or military service, returned, like Cincinnatus and Cato, to the cultivation of their fields and gardens. The Roman armies were recruited from the peasantry; and when the war was over, the soldier returned to his daily labour; and, in later times, the veteran, when his period of service was completed, became a small farmer in a military colony. To a restless nation, who could not exist in a state of inactivity, a change of labour was relaxation; and the pleasures of rural life, which were so often sung by the Augustan poets, were heartily enjoyed by the same man whose natural atmosphere seemed to be either politics or war. Besides the possession of these rural tastes the Romans were essentially a domestic people. The Greeks were social; they lived in public; they had no idea of home. Woman did not with them occupy a position favourable to the existence of home-feeling. The Roman matron was the centre of the domestic circle; she was her husband’s equal, sometimes his counsellor, and generally the educator of his children in their early years. Hundreds of sepulchral inscriptions bear testimony to the sweet charities of home-life, to the dutiful obedience of children, the devoted affection of parents, the fidelity of wives, the attachments of husbands. Hence, home and all its pursuits and occupations had an interest in the eyes of a Roman. For this reason there were so many writers on rural and domestic economy. From Cato to Columella we have a list of authors whose object was instruction in the various branches of the subject. They were thus enumerated by Columella himself:[336] “Cato was the first who taught the art of agriculture to speak in Latin; after him it was improved by the diligence of the two Sasernæ, father and son; next it acquired eloquence from Scrofa Tremellius; polish from M. Terentius, (Varro;) poetic power from Virgil.” To their illustrious names he adds those of J. Hyginus, the Carthaginian Mago, Corn. Celsus, J. Atticus, and his disciple J. Græcinus.