Charon, in Greek Mythology, is the boatman of Hades, who carries the souls of the newly dead over the waters of the River Styx and Aqueronte, which divided the world of the living from the world of the dead. A coin to pay for the journey, usually an obola or dancaca, was sometimes placed inside or over the mouths of corpses, according to the ancient Greek funerary tradition. According to some authors, those who were unable to pay the amount, or those whose bodies had not been buried, had to roam the margins for a hundred years.