What are the history books compiled during the reign of Zhenguan?

During the reign of Emperor Taizong of the Tang Dynasty, the compilation of the actual records of the current dynasty and the compilation of official history books became institutionalized.

At the beginning of the reign of Emperor Zhenguan, he instructed Wei Zheng, Yu Shinan, and Xiao Deyin to edit the abridged version of "The Rise and Fall of the Emperors and Kings of the Hundred Generations" to meet the needs of the reign of Emperor Zhenguan. And then, successively repaired into eight official history, which is the "Northern Qi Book eight" Zhou Book "," Liang Book "," Chen Book "," Sui Book "," Jin Book "," South History "," North History ". The above eight official history, in addition to the North and South History for Li Yanshou father and son of the private alone, the remaining six are all Tang Taizong edict collective official repair.