The 54-gun salute symbolized the 54 nationalities in China at that time, and also symbolized the 54 units that attended the CPPCC meeting at that time, and also commemorated the May 4th Movement. There are many speculations about the 28th Ring Road in the world, but 90 days before founding ceremony, Chairman Mao said: China's * * * production party is 28 years old. In the past 28 years, the people have won the revolutionary war, but we still have a lot to do, just like the first step of the Long March. Therefore, our country's consistent interpretation of the "Twenty-eight Rings" represents the twenty-eight years that China's * * * production party led the people's revolution in China.