Chiang Pin-kung (L), former chairman of the Straits Exchange Foundation (SEF), offers a basket of flowers with his wife during a memorial ceremony for Emperor Xuanyuan, or the Yellow Emperor who is the legendary ancestor of Chinese people, in Huangling County, northwest China's Shaanxi Province, April 4, 2013. Over 10,000 people attended the ceremony on Thursday which is also the Qingming Festival, or the Tomb-Sweeping Day. (Xinhua/Ding Haitao)