二十四史
The History of Yuan (Yuán Shǐ), also known as the Yuanshi, is one of the official Chinese historical works known as the "Twenty-Four Histories" of China. Commissioned by the court of the Ming dynasty, in accordance to political tradition, the text was composed in 1370 by the official Bureau of History of the Ming dynasty, under direction of Song Lian (1310–1381).