Sun Yat-sen is often referred to as the "Father of Modern China." He played a crucial role in the overthrow of the Qing Dynasty and the establishment of the Republic of China in 1912. His ideologies, known as the Three Principles of the People—nationalism, democracy, and people's livelihood—laid the foundation for modern Chinese politics. Sun Yat-sen's vision sought to unite China and promote modernization, inspiring subsequent leaders and movements, including the Chinese Communist Party and Nationalists. His legacy continues to influence Chinese society and politics, symbolizing the shift from imperial rule to a republic, and he is celebrated as a national hero in China.