The 2,200-year-old mummified body of a Chinese noblewoman known as Xin Zhui, or The Lady of Dai, is an anomaly. When her body was discovered, it was so incredibly well preserved that it equalled that of someone recently deceased. Xin Zhui, the Lady of Dai , died between 178 and 145 BC, at around 50 years of age. The objects inside her tomb indicated a woman of wealth and importance. In 1971, her Han Dynasty -era tomb was discovered accidentally by workers digging an air raid shelter.