요사
The History of Song or Song Shi () is one of the official Chinese historical works known as the "Twenty-Four Histories" of China that records the history of the Song dynasty (960–1279). It was commissioned in 1343 and compiled under the direction of First Minister Toqto'a and Prime Minister Alutu () during the Yuan dynasty (1279–1368) at the same time as the "History of Liao" and the "History of Jin". Running to a total of 496 chapters, the "History of Song" includes biographies of the Song Emperors along with contemporary records and biographical sketches of Song dynasty politicians, soldiers and philosophers.