Why is Wuhan dialect so similar to Sichuan dialect?

Wuhan dialect is very similar to Sichuan dialect because it belongs to the same dialect family-Southwest Mandarin.

Southwest Mandarin, mainly popular in the upper reaches of the Yangtze River, also known as Shangjiang Mandarin, belongs to the dialect of modern Mandarin. Southwest Mandarin is divided into 6 pieces and 22 pieces, which are distributed in Sichuan, Chongqing, Guizhou, Yunnan, Hubei, Guangxi, Hunan, Shaanxi, Jiangxi, Gansu, Guangdong, Hainan, Fujian *** 15 provinces, cities and autonomous regions, more than 600 counties and cities and a few areas in Southeast Asia.

Wuhan dialect is a local dialect popular in the central city of Wuhan and its adjacent areas in Hubei Province. It is divided into southwest mandarin-Huguang film-Hubei film, and there are also immigrant dialects. After all, there is a saying that "nine quotient points to one person". Wuhan dialect originated from the Mandarin of Wuchang Prefecture in Ming and Qing Dynasties.

Sichuan dialect belongs to southwest mandarin, also known as Bashu dialect. Today's Sichuan dialect was formed in the great migration movement of "Huguang filling Sichuan" during the Kangxi period of Qing Dynasty, and it was formed by the gradual evolution and integration of Shu dialect popular in Sichuan before the Ming Dynasty and immigrant dialects in Huguang, Guangdong and Jiangxi.