severely criticised during the Northern Song; Emperor Renzong of Song, for example, called the book "poorly organised, burdened with unimportant details, wanting in style and poorly researched". These errors even included duplicated biographies of characters. Because of these criticisms, in 1044 a new history of the Tang dynasty was commissioned; with Ouyang Xiu and Song Qi as editors, the New Book of Tang was then produced. After the New Book was presented, the original Old Book of Tang went out of print, and over centuries it became very rare. It was during the Ming dynasty when the remaining copies were gathered and the book was once again published, eventually becoming canonised as one of the Twenty-Four Histories. References Citations Sources Works cited External links The Old Book of Tang at the Chinese Text Project. Old Book of Tang 《》 Chinese text with matching English vocabulary 10th-century history books Twenty-Four Histories Five Dynasties and Ten Kingdoms literature History books about the Tang dynasty 10th-century Chinese books