Why is the dialect spoken in Sichuan called "Northern dialect"? What's the history here?

Because most Sichuan people come from the north, when the Mongols invaded, many Han people came to Sichuan, especially in Hubei and Hunan, so there was Huguang filling up Sichuan. According to the theory, the Great Migration at that time allowed the population of the north and south to merge. The indigenous Sichuan dialects were mixed with the Mandarin of the northern Han people, forming today's Sichuan dialect. Therefore, except for the accent, the current Sichuan dialect is not different from Mandarin. It’s not too big, so it naturally belongs to the northern Mandarin area.

Speaking of our country’s dialects, everyone knows that China is a country with a vast territory and rich resources, and the accents in each place are different. Generally speaking, Cantonese, Northeastern dialect, and Sichuan dialect are all used in the program. It is very popular. Nowadays, many TV series and movies have Sichuan dialect dubbing, which makes people feel very funny. Sichuan dialect is considered by many netizens to be a very strange dialect, because most places in Sichuan are in the south. This includes Chongqing, but Sichuan dialect, also known as Southwest Mandarin, is classified as a northern dialect area. This makes many people feel very strange. Since it is located in the south, why is the dialect here still classified as a northern dialect.

First of all, Sichuan dialect belongs to Southwest Mandarin, not just Sichuan, but also Yunnan, Chongqing and the northeastern part of Guangxi, which are all areas where Southwest Mandarin is used. Since it belongs to the Mandarin area, it belongs to the northern dialect. In addition to the northern dialect of Southwest Mandarin, there are also Northwest Mandarin, Central Plains Mandarin, Jianghuai Mandarin, Hebei-Shandong Mandarin and Northeastern Mandarin. These dialects do not sound too different from Mandarin. Most of the words are very similar to Mandarin, but the tones are different. After all, Sichuan people basically migrated from the north in the past, with some southerners mixed in.

So the dialects spoken in Sichuan are mainly northern dialects. The dialect itself has nothing to do with the geographical division of the south and the north. For example, Shanxi is a typical northern dialect, but the dialect of Shanxi is called Jin dialect. , and it does not belong to the Mandarin area, and places like Yunnan and Guangxi belong to the southernmost part of our country, but there are also many places that belong to Southwest Mandarin, so it does not mean that the geographical location belongs to the south, the local dialect must belong to the southern dialect, and the whole country belongs to the south. Dialects include Wu, Hokkien, Cantonese, Hakka, Gan, etc.