Is Minnan dialect the official language of the Tang Dynasty?

People upstairs have collected some historical materials that do exist, but what they say is irrelevant. Minnan is not the official language of the Tang Dynasty. First of all, it must be clear that Mandarin developed with the dynasties and time. The earliest known rhyme book began in the Sui Dynasty. We can restore a large number of pronunciations, but tones cannot be restored. Similarities can be found in dialects of every region, and there are indeed many similarities. Dialects in different places are developing vigorously in different directions. The formation of Minnan dialect is closely related to the local immigration history. Austronesian languages, Zhuang Dong people and ancient Chu people migrated to the ancient State of Wu, and there have also been a large number of immigrants since the Jin Dynasty. People in Minnan dialect pronounce Nong, which is the characteristic of Wu dialect, while sons pronounce cave, which is probably the characteristic of Austronesian language. A lot of ancient usage: pot is pronounced ding, chopsticks are pronounced chopsticks, and they run away. It is said that Minnan dialect also has different pronunciations. Literary reading materials are called reading books, which are the pronunciations brought by immigrants in the Tang and Song Dynasties, and 60% of words have two or more pronunciations. Therefore, you can find many features of old sayings in Minnan dialect, but at the same time, you can find that they are inconsistent with old sayings. Other dialects are generally like this. In 5000 years, they formed a blend and developed independently. On the land of China, the Central Plains civilization was developed into different sub-civilizations, and finally formed today's colorful Chinese civilization.