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
Battle of the Kalka River to the last man. After drawing out the Rus armies for nine days in a feigned retreat, the Mongol army turned to face their pursuers along the Kalka River (the river's location is currently unknown, but it is thought to be the Kalchik River which flows into the Sea of Azov). The Russian primary sources give only a very general account of the battle itself and the pursuit of the princes back across the steppe. The chronicles name which princes took part and which died, but not much more in terms of the size of armies or casualties. As to