A dragon sculpture is seen during a memorial ceremony to worship “Yellow Emperor” who according to legend reigned nearly 5,000 years ago and is regarded as the ancestor of all Chinese people, in Huangling county, Northwest China’s Shaanxi province, April 4, 2017. Over 10,000 people attended the ceremony on April 4 which is also the Qingming Holiday, or the Tomb-Sweeping Day.[Photo/Xinhua]

Performers dance during a memorial ceremony to worship “Yellow Emperor” who according to legend reigned nearly 5,000 years ago and is regarded as the ancestor of all Chinese people, in Huangling county, Northwest China’s Shaanxi province, April 4, 2017. Over 10,000 people attended the ceremony on April 4 which is also the Qingming Holiday, or the Tomb-Sweeping Day.[Photo/Xinhua]

Performers are seen during a memorial ceremony to worship “Yellow Emperor” who according to legend reigned nearly 5,000 years ago and is regarded as the ancestor of all Chinese people, in Huangling county, Northwest China’s Shaanxi province, April 4, 2017. Over 10,000 people attended the ceremony on April 4 which is also the Qingming Holiday, or the Tomb-Sweeping Day.[Photo/Xinhua]

Performers dance during a memorial ceremony to worship “Yellow Emperor” who according to legend reigned nearly 5,000 years ago and is regarded as the ancestor of all Chinese people, in Huangling county, Northwest China’s Shaanxi province, April 4, 2017. Over 10,000 people attended the ceremony on April 4 which is also the Qingming Holiday, or the Tomb-Sweeping Day.[Photo/Xinhua]

Performers dance during a memorial ceremony to worship “Yellow Emperor” who according to legend reigned nearly 5,000 years ago and is regarded as the ancestor of all Chinese people, in Huangling county, Northwest China’s Shaanxi province, April 4, 2017. Over 10,000 people attended the ceremony on April 4 which is also the Qingming Holiday, or the Tomb-Sweeping Day.[Photo/Xinhua]