In Classical Greek, Lethe (λήθη; Classical Greek [ˈlεːt̪ʰεː], modern Greek: [ˈliθi]) literally means "forgetfulness" or "concealment". It is related to the Greek word for "truth": a-lethe-ia (αλήθεια), meaning "un-forgetfulness" or "un-concealment". In Greek mythology, Lethe is one of the several rivers of Hades: those who drank from it experienced complete forgetfulness. Lethe was also a naiad, although the naiad Lethe is probably a separate personification of forgetfulness rather than a reference to the river which bears her name. She was the daughter of Eris ('Strife' in Hesiod's Theogony), and sister to Algos, Limos, Horcus, and Ponos.

[edit] Role in religion and philosophy

Some ancient Greeks believed that souls were made to drink from the river before being reincarnated, so they would not remember their past lives. The Myth of Er at the end of Plato's Republic tells of the dead arriving at the "plain of Lethe", through which the river Ameles ("careless") runs. A few mystery religions taught the existence of another river, the Mnemosyne; those who drank from the Mnemosyne would remember everything and attain omniscience. Initiates were taught that they would receive a choice of rivers to drink from after death, and to drink from Mnemosyne instead of Lethe. These two rivers are attested in several verse inscriptions on gold plates dating to the 4th century BC and onward, found at Thurii in Southern Italy and elsewhere throughout the Greek world. There were rivers of Lethe and Mnemosyne at the oracular shrine of Trophonius in Boeotia, from which worshippers would drink before making oracular consultations with the god. More recently, Martin Heidegger used "lēthē" to symbolize the "concealment of Being" or "forgetting of Being" that he saw as a major problem of modern philosophy. Examples are found in his books on Nietzsche (Vol 1, p. 194) and on Parmenides.

[edit] Real rivers

The River Lethe in Alaska.

Amongst authors in Antiquity, the tiny Limia River between Northern Portugal and Galicia (Spain) was said to have the same properties of memory loss as the legendary Lethe River. In 138 BC, the Roman general Decimus Junius Brutus sought to dispose of the myth, as it impeded his military campaigns in the area. He was said to have crossed the Limia and then called his soldiers on the other side, one by one, by name. The soldiers, astonished that their general remembered their names, crossed the river as well without fear. This act proved that the Limia was not as dangerous as the local myths described. In Alaska, a river which runs through the Valley of Ten Thousand Smokes is called River Lethe.

[edit] See also

• River Lethe in popular culture