Definition: In this task, you need to generate an appropriate title for the given summary of some paragraph. The generated title must be short and should include the main topic of the given text. Your summary should be less than 20 words long.
Input: One of the most important events of the 20th Century was the overthrow of China's last imperial dynasty, the Qing, and the founding of the Republic of China (ROC).

Legacy debate as Republic of China marks 100 years