During the summer of 1986, construction workers accidentally uncovered an astounding cache of ancient jades, bone, pottery, elephant tusks and monumental bronzes at Sanxingdui, about 25 miles outside of China’s Sichuan Province capitol of Chengdu. The objects were dated to about 1800 BC, a time when it was thought that the cradle of Chinese civilization was 1200 kilometers to the northeast on the Yellow River in China’s central plain region. The Sanxingdui culture left no written record or human remains and appears to have existed for only about 500 years before vanishing. In 2001, archaeologists in the city of Chengdu at Jinsha discovered possible clues to the mystery of where they might have gone. China’s Lost Civilization: The Mystery Of Sanxingdui, now at the Houston Museum of Natural Science, presents many of the most important discoveries from both Sanxingdui and Jinsha and examines the great mystery of where this 3,500-year-old culture could have come from and what happened to end it so abruptly.