Death:Death, Cause unspecified 13 August 2009 (Age 92) chart Placidus Equal_H.
Chinese historian, Emeritus Professor at the Australian National University, and pioneer of Daoist studies, known for his influential essay "Was Celestial Master Zhang a Historical Figure?" His name is also spelled Liu Ts un-yan or Liu Tsun-Yan. He died on 13 August 2009, aged 92.