Dr. Sun Yat-sen served as the President of which country?

Dr. Sun Yat-sen is widely recognized as the 'Father of the Nation' in modern China. He played a crucial role in the overthrow of the Qing Dynasty and the establishment of the Republic of China. He served as the provisional first president of the Republic of China in 1912, advocating for his 'Three Principles of the People' (nationalism, democracy, and the people's livelihood).

• Japan, South Korea, and Vietnam are distinct East Asian and Southeast Asian nations. Each has its own unique history and national heroes who led their respective countries through periods of significant political change and nation-building. Sun Yat-sen's leadership and revolutionary efforts were exclusively focused on China.