A public cemetery uncovered in the city of Xi'an, capital of Northwest China's Shaanxi province, was used for maids of the Tang Dynasty (618 - 907), an archaeologist told Xinhua Tuesday.

A dozen tombs, located in the west of the thousands-year-old city, were found in April, 2012, Liu Daiyun, a Shaanxi Archeology Research Institute researcher said.

Since then, the tombs have been examined....