Is Sichuan dialect different from Mandarin or Cantonese by one vote?

Neither.

At 1. 19 13, the Republic of China held a unified pronunciation conference and decided to promote national pronunciation throughout the country. At that time, Beijing dialect had become the national common language. So they didn't go through the legendary voting, and all the participants agreed that they could be the voice of the country with some modifications.

2. It took more than a month for the national unified speech conference. For the disputed pronunciation, the national pronunciation is decided by a majority vote. That is to say, in the process of examination and approval, there may be a difference in pronunciation of some words by one vote, but there is no case that a certain dialect is designated as the national common language by one vote.

3. On the whole, the national voice established in the early Republic of China was based on Beijing dialect, which absorbed the phonetic features of other dialects, such as distinguishing the sharp group voice and retaining the entering tone, but the Beijing voice forces did not buy it. The silent school that advocates the pure use of Beijing dialect is still very powerful, and many schools even have a dispute between the national tone school and the silent school.

4. 1924, the official preparatory meeting for the unification of the national language of the Republic of China changed its course and decided to use Beijing as the national language. After the victory of Silent School, Guoyin School became the old Guoyin. Since then, Beijing dialect has won the battle of Beijing and successfully became the official language of the Republic of China.

5.1955101October 15 ~ 23, the National Conference on Character Reform was held in Beijing, attended by 207 people from all over the country and central units.

6. In order to decide which dialect will become the official language, that is, Mandarin, everyone argued endlessly and finally decided to vote. At that time, the voting results were: Beijing Mandarin ranked first, Southwest Mandarin fell to Sun Shan by one vote, Wu Mandarin ranked third and Cantonese ranked fourth, so Beijing Mandarin became Mandarin.

Extended data:

Mandarin is a modern standard Chinese with Beijing accent as the standard pronunciation, northern dialect (Mandarin) as the basic dialect, and typical modern vernacular as the grammatical norm. As one of the working languages of the United Nations, Mandarin has become an important bridge for cultural exchanges between China and foreign countries and the first choice for foreigners to learn Chinese.

As of 20 15, 70% of the population in China has the ability to use Putonghua, and about 400 million people are limited to one-way communication. The Implementation Plan of the National Common Language Popularization Project plans to basically popularize the national common language in China by 2020. Specifically, the national Putonghua popularization rate will reach over 80% on average.

The word Putonghua appeared in the late Qing Dynasty. In 1909, the Qing court stipulated that Beijing Mandarin was the national language, and the pronunciation of Mandarin was formulated many times during the Republic of China. 1955 after the founding of new China, it was stipulated that the national common language was putonghua. The predecessor of Mandarin is Mandarin in Ming and Qing Dynasties, before which it was called Yayan.