It is often thought, for no good reason, that myth and history are mutually exclusive. But most mythic stories were believed by their tellers, and some of them were true. Was Lucretia a real woman, raped by the king's son? Did Horatius really hold the bridge alone against an army? Nobody knows; but figures like Spartacus, Cleopatra, Caligula and Nero were certainly real flesh and blood before they became figures of myth. The long history of the Roman People and their city - whether under the kings, the free republic, or the Caesars - generated countless stories, no less mythic than the tale of Troy.