One Thousan and One Nights (Arabic: كتاب ألف ليلة وليلة - kitāb 'alf layla wa-layla; Persian: هزار و یک شب - Hezār-o yek šab) is a collection of stories collected over many centuries by various authors, translators and scholars in various countries. These collections of tales trace their roots back to ancient Arabia and Yemen, ancient India, ancient Asia Minor, ancient Persia (especially the Sassanid Hazār Afsān Persian: هزار افسان, lit. Thousand Tales), ancient Egypt, ancient Mesopotamian Mythology, ancient Syria, and medieval Arabic folk stories from the Caliphate era. Though the oldest Arabic manuscript dates from the fourteenth century, scholarship generally dates the collection's genesis to somewhere between AD 800-900.