When did Beijing dialect become the national language of China? Is there a difference between Beijing dialect and Luoyang dialect? Is Beijing dialect spoken by Central Plains people or brought by fore

When did Beijing dialect become the national language of China? Is there a difference between Beijing dialect and Luoyang dialect? Is Beijing dialect spoken by Central Plains people or brought by foreigners? Mandarin is based on the pronunciation of Beijing dialect, which originated from the "Beijing dialect" in Qing Dynasty and was spoken by the emperor. In the early years of the Republic of China, Beijing dialect was adopted as the national language, which acquiesced in the status of this royal language. But in those days, not everyone accepted Beijing dialect. Before the Revolution of 1911, the League criticized Beijing dialect for "ruining my language". Some people think that the pronunciation of Beijing opera dialogue is more suitable as a national language. There is a joke. It is said that the then President of the Republic of China was Li, a native of Huangpi, Hubei. He tried to make Huangpi dialect a national language, but he lost by one vote. The pronunciation of Beijing opera dialogue is close to that of Hubei dialect. A little comparison shows that the tone of Beijing dialect is obviously different from that of Hebei, Shandong and other places not far from Beijing, but it is the same as that of Northeast dialect. Therefore, "Beijing dialect" should be developed from the Chinese spoken by the flag-bearers in the Qing Dynasty, and the source of this Chinese may be the popular Chinese dialect in the northeast of the Ming Dynasty.