Chinese archaeologists said that a tomb unearthed in east Jiangsu Province might be the final resting place of an emperor known for his tyrannous reign about 1,500 years ago. The 20-square-meter tomb in Yangzhou City might belong to Yang Guang, or Emperor Yang of Sui, the second and last monarch of the short-lived Sui Dynasty (AD 581-618), according to the city's cultural heritage bureau. A gravestone excavated from the tomb confirmed the emperor's identity, while an inscription about the year of his death concurred with historical accounts, said Shu Jiaping, head of Yangzhou's institute of archaeology. "But we're still not...