The Lives of the Twelve Caesars

The Lives of the Twelve Caesars by 2nd Century Roman historian Gaius Suetonius Tranquillus is the key primary source of biographical information for the first twelve rules of ancient Rome - emperors Julius Caesar, Augustus, Tiberius, Caligula, Claudius, Nero, Galba, Otho, Vitellius, Vespasian, Titus and Domitian.