Why is there no record of the White State in the official history?

The ancient name "Baizi Kingdom" is used in the southwest of China (mainly in the west of Yunnan), which started in the Warring States Period and ended in the Sui and Tang Dynasties. Specifically, today's Kun tribes along the traffic lines, such as Dali, Midu, Xiangyun, South China, Erhai Dayao and Yao 'an, merged with the Han immigrants who moved in since the Han and Jin Dynasties, and many tribes were formed from Sui to the early Tang Dynasty, which are recorded in historical books such as East and West Hers, Imperial edict of Dian State, Dongnong People and Qin Ge People. Hu Weiben's Nanzhao unofficial history also said: In the Han Dynasty, Zhuge Wu conquered the south, arrived at Baiya, killed Yong and Min, and seized the jar. He also named Sun Long, the 15th king, as the viceroy, and gave him the surname Zhang. On the 32nd, he was sent for help. In the twenty-third year of Zhenguan reign, Emperor Taizong made him a general.