Pluto, in Greek mythology, the ruler of the underworld. His earlier name, Hades, was later applied to his domain. The Romans sometimes called him Pluto, but more often Tartarus, Dis, or Orcus. Pluto means “wealthy one" or “giver of riches," and Pluto often figured as a distributor of the wealth found beneath the earth. In this role, he was confused with Plutus, personification of wealth.
Caesar, a title that came from the name of a Roman family. The first important member of the family was the soldier and statesman Gaius Julius Caesar.
Rome and the Roman Empire, the most powerful state of the ancient world. It grew from an Italian village to a city-state and into an organization that ruled the shores of the Mediterranean and much of western Europe.