Masterpieces of literature
A large number of literary work can be counted including Gulistan ("The Rose Garden"), written in 1259 CE and Bostan ("The Orchard") completed in 1257. These were written by a Persian poet Sa'di, considered one of the greatest medieval Persian poets.
Arabian nights are also a landmark in medieval literature. Many tales were originally folk stories from the Caliphate era.
Masnawi by Moulana Roomi is also a great work in Persian literature. All these masterpieces above have been translated into many languages throughout the world.