Andromeda (play) also prophesied that the descendants of Perseus and Andromeda would become the rulers of Mycenae. Little is known of treatments of the Andromeda myth prior to Euripides. However, Sophocles wrote a play entitled "Andromeda", which covered the same story and was believed to have been performed around 450 BC. Sophocles' "Andromeda" is now lost except for a few fragments. Euripides treated earlier aspects of the Perseus myth in his earlier plays "Danae" (between 455 and 425 BC), which covered Perseus' birth, and "Dictys" (431 BC), which covered his defeat of Medusa. Information about "Andromeda" is largely based on later sources,
Sea monster "Carta marina". This practice died away with the advent of modern cartography. Nevertheless, stories of sea monsters and eyewitness accounts which claim to have seen these beasts persist to this day. Sea monster accounts are found in virtually all cultures that have contact with the sea. For example, Avienus relates of Carthaginian explorer Himilco's voyage "...there monsters of the deep, and beasts swim amid the slow and sluggishly crawling ships." (lines 117-29 of "Ora Maritima"). Sir Humphrey Gilbert claimed to have encountered a lion-like monster with "glaring eyes" on his return voyage after formally claiming St. John's, Newfoundland (1583) for