Why did the Revolution of 1911 led by Sun Yat-sen cause great historical changes in modern China?

First of all, the Revolution of 1911 dealt a fatal blow to the feudal autocracy. It overthrew the Qing Dynasty, which ruled China for more than 260 years, ended the feudal autocratic monarchy system in China for more than 2,000 years, established a bourgeois republic, and promoted historical progress. The Revolution of 1911 enabled the people to gain some democratic and harmonious rights. Since then, the concept of democracy and harmony has been deeply rooted in people's hearts. Secondly, the Revolution of 1911 overthrew the "foreign court" and dealt a heavy blow to the imperialist forces of aggression. Third, the Revolution of 1911 created favorable conditions for the development of national capitalism. After the founding of the Republic of China, domestic industrial groups were established one after another, and it became a trend to set up factories and banks. The economic power of state capitalism has been greatly enhanced in a few short years, and the ranks of the proletariat have also grown rapidly. Fourthly, the Revolution of 1911 had a wide influence on the liberation movement of oppressed peoples in modern Asian countries, especially on the struggle against colonialism in Vietnam, Indonesia and other countries. During this period, there was a climax of the national liberation movement in Asia.