Livy ; c. 59/64 B.C.E.-19 C.E. (Encyclopedia Britannica)

Titus Livius, one of the three great Roman historians, alongside Sallust and Tacitus, known as "Livy." His monumental History of Rome (c. 9-27 B.C.E.), spanning 142 books, influenced historical writing until well into the eighteenth century.