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
Modern understanding of Greek mythology absent and a single seal impression from Knossos showing a boy beneath a sheep is regarded as a scant evidence for the myth of Zeus' childhood. Modern understanding of Greek mythology The genesis of modern understanding of Greek mythology is regarded by some scholars as a double reaction at the end of the 18th century against "the traditional attitude of Christian animosity mixed with disdain, which had prevailed for centuries", in which the Christian reinterpretation of myth as a "lie" or fable had been retained. In Germany, by about 1795, there was a growing interest in Homer and Greek mythology.