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
Greek mythology in popular culture stories, Percy's ADHD characteristics are explained as being caused by his Olympian blood, thus Riordan was "us[ing] Greek mythology as it has always been used: to explain something that is difficult to understand." In the opera within Girl Genius, the Heterodyne daughter who falls in love with the Storm King is Euphrosynia. The Amazon queen Hippolyta was used as the mother of Wonder Woman in the DC comic book line, At Niagara Falls, the Bridal Veil Falls had previously been called Iris Falls, and Goat Island had previously been called Iris Island as namesakes of the Greek goddess of the