More than 500 pieces of pottery, bronze and iron ware dating back from the Warring States period (475-221 BC) to the Tang Dynasty (618-907) have also been discovered in the area.
Exchanges in international energy, shipping, commodities and carbon trading will be established in Hainan. The island will also focus on developing modern service industries such as tourism, the Internet, healthcare, finance and hosting conferences and exhibitions.
Once remote and underdeveloped, Hainan has become one of China's most open and dynamic regions and a top tourist destination.
Xi said actions should be taken against corruption and undesirable practices in poverty relief work, while demanding strict punishment for embezzlement of poverty relief funds, and elimination of practices like formalities for formalities' sake, bureaucratism, and falsification.
President Xi Jinping and Russian President Vladimir Putin each sent congratulatory messages on Wednesday to the opening ceremony of the Year of China-Russia Local Cooperation and Exchange.
Terry Crossman patrols streets in Beijing's Xicheng district as a public security volunteer.[Photo/VCG]
There were no terrorist attacks in the Xinjiang Uygur autonomous region last year, the region's chairman said on Tuesday as he discussed the regional government's determination to keep the social situation calm.