Sichuan dialect, also known as Bashu dialect, belongs to southwest mandarin of Chinese. Today's Sichuan dialect was formed in the great migration movement of "Huguang filling Sichuan" during the Kangxi period of the Qing Dynasty, and it was gradually evolved and merged from Sichuan dialect popular before the Ming Dynasty and immigrant dialects in Huguang, Guangdong and Jiangxi.
Extended data:
Declaration on the origin of foreign dishes
There is a saying that "foreign food" is a mockery of foreign adults in the old society. Although I bully others on weekdays, I am often teased in the teahouse because I don't know the rules. For example, if you double your education, you won't be able to drink the original free tea. Spend more money than the specified price and get the worst service.
In other words, the original writing of "foreign plate" is to pretend to fiddle with the abacus and calculate the actual price. If customers pay at this price, they will definitely suffer. The initial fraud was later extended to people who didn't know how to calculate and were easily deceived.
References:
Baidu encyclopedia-Sichuan dialect
References:
Baidu Encyclopedia-Foreign Section