 Livy's only surviving work is commonly known as ""History of Rome"" (or ""), which was his career from his mid-life, probably 32, until he left Rome for Padua in old age, probably in the reign of Tiberius after the death of Augustus.When he began this work he was already past his youth; presumably, events in his life prior to that time had led to his intense activity as a historian.Seneca the Younger gives brief mention that he was also known as an orator and philosopher and had written some treatises in those fields from a historical point of view.