The "One Thousand and One Nights" ( "ʾAlf layla wa-layla"), is a medieval folk tale collection which tells the story of Scheherazade, a Sassanid queen who must relate a series of stories to her malevolent husband, King Shahryar (Šahryār), to delay her execution. The stories are told over a period of one thousand and one nights, and every night she ends the story with a suspenseful situation, forcing the King to keep her alive for another day. The individual stories were created over several centuries, by many people from a number of different lands.