(150920) -- BEIJING, Sept. 20, 2015 (Xinhua) -- File Photo taken on Nov. 27, 1950 shows Wu Xiuquan (L, front), representative of the People's Republic of China, attending the general assembly of the first committee of the United Nations (UN). The restoration of the People's Republic of China's sole lawful rights by the 26th UN General Assembly was a major breakthrough in China's diplomacy. As a founding member of the UN and one of the five permanent members of the UN Security Council, China has played an important role during its process. Later this month, Chinese President Xi Jinping will deliver a speech on the world stage during his visit to the UN. (Xinhua) (mp)