Zhengzhou, A royal tomb dating back approximately 5,000 years has been discovered at a ruins site in central China's Henan Province. It is one of the largest from its time, with over 350 artefacts unearthed to date.Located in the Wangzhuang ruins in the city of Yongcheng, the tomb covers a total area of over 17 square meters, a super large size back then. Archaeologists believe the tomb's owner was a king of a prehistoric state, Xinhua News Agency reported.The Wangzhuang ruins belong to the middle and later periods of the Dawenkou Culture (4000 B.C.-2600 B.C.), a culture of the late Neolithic Age.Source: Bahrain News Agency