Floor tiles with pattern of dragon discovered in Xi'an(1/5)

Photo combined on June 5, 2019 shows eight floor tiles with inscriptions unearthed from Chamber M6 of an ancient tomb of Eastern Han Dynasty (25-220) in Xi'an, northwest China's Shaanxi Province. The inscriptions include words that indicate the exact period they were made, as well as patterns such as a dragon. (Photo provided to China News Service)

Photo combined on June 5, 2019 shows three floor tiles with inscriptions unearthed from Chamber M6 of an ancient tomb of Eastern Han Dynasty (25-220) in Xi'an, northwest China's Shaanxi Province. (Photo provided to China News Service)

Photo taken on May 12, 2019 shows Chamber M2 of an ancient tomb of Eastern Han Dynasty in Xi'an, northwest China's Shaanxi Province. (Photo provided to China News Service)

Photo taken on May 12, 2019 shows Chamber M4 of an ancient tomb of Eastern Han Dynasty in Xi'an, northwest China's Shaanxi Province. (Photo provided to China News Service)

Aerial photo taken on May 1, 2019 shows the excavation site of ancient tombs of Eastern Han Dynasty in Xi'an, northwest China's Shaanxi Province. (Photo provided to China News Service)