On Agriculture, Volume IColumella (Lucius Iunius Moderatus) of Gades (Cadiz) lived in the reigns of the first emperors to about 70 CE. He moved early in life to Italy where he owned farms and lived near Rome. It is probable that he did military service in Syria and Cilicia and that he died at Tarentum. Columella's On Agriculture (De Re Rustica) is the most comprehensive, systematic and detailed of Roman agricultural works. Book I covers choice of farming site; water supply;