Lerna Heracles killed it, as the second of his labors. The strong Karstic springs remained; the lake, diminished to a silt lagoon by the 19th century, has vanished. Lerna is notable for several archaeological sites, including an Early Bronze Age structure known as House of the Tiles, dating to the Early Helladic period II (2500–2300 BC). The secret of the Lernaean spring was the gift of Poseidon when he lay with the "blameless" daughter of Danaus, Amymone. The geographer Strabo attests that the Lernaean waters were considered healing: Lake Lerna, the scene of the story of the Hydra, lies in Argeia
Theban kings in Greek mythology no Theban leader is mentioned by Homer in the "Iliad". Theban kings in Greek mythology The dynastic history of Thebes in Greek mythology is crowded with a bewildering number of kings between the city's new foundation (by Cadmus) and the Trojan War (see Ogyges). This suggests several competing traditions, which mythographers were forced to reconcile. The first kings of the Boeotia region (before Cadmus and the flood of Deucalion) were Calydnus and Ogyges (Ogygos). The first king of the settlement that would become Thebes was Cadmus, after whom the city was originally called Cadmeia. It only became known as Thebes