Tarikh-i Jahangushay-i Juvaini ( "The History of The World Conqueror") is a detailed historical account written by the Persian Ata-Malik Juvayni describing the Mongol, Hulegu Khan, and Ilkhanid conquest of Persia as well as the history of Isma'ilis. It is also considered an invaluable work of Persian literature. Juvayni's descriptions are, however, a very valuable resource for contemporary Mongol history, along with the work of Rashid al-Din, and the Secret History of the Mongols.