The story of the Seven Sleepers occurs both in Islam (as Sura 18 of The Koran) and in Christianity ('The Seven Sleepers of Ephesus' in Jacobus de Voragine's 13th century collection of apocrypha known as 'The Golden Legend'). In each case the story concerns a group of young men escaping from persecution by a local pagan ruler who fall asleep in a cave. Through divine intervention they sleep safely for a hundred years or more and wake up after the area has converted to the appropriate religion. Although Voragine sets the story in Ephesus (in modern Turkey), the Koranic version is clearly identified with this cave in a southern suburb of Amman. This identification must have occured by the 8th century as the Umayyads built a mosque outside and it appears to have been something of a pilgrimage site.