Acheron Cocytus and Phlegethon both flowed. The Roman poet Virgil called it the principal river of Tartarus, from which the Styx and Cocytus both sprang. The newly dead would be ferried across the Acheron by Charon in order to enter the Underworld. The Suda describes the river as "a place of healing, not a place of punishment, cleansing and purging the sins of humans". According to later traditions, Acheron had been a son of Helios and either Gaia or Demeter, who had been turned into the Underworld river bearing his name after he refreshed the Titans with drink during their contest
Tartarus only to confine dangers to the gods of Olympus. In later mythologies, Tartarus became the place where the punishment fits the crime. For example: According to Plato (c. 427 BC), Rhadamanthus, Aeacus and Minos were the judges of the dead and chose who went to Tartarus. Rhadamanthus judged Asian souls, Aeacus judged European souls and Minos was the deciding vote and judge of the Greek. Plato also proposes the concept that sinners were cast under the ground to be punished in accordance with their sins in the Myth of Er. There were a number of entrances to Tartarus in Greek