Liu Dun was born in July 1947 in Wuhan, Hubei province. He is the Dean of the School of Humanities and Social Sciences of the University of Science and Technology of China, an Overseas Fellow of Churchill College, Cambridge University, Distinguished Professor of the Department of Science History of Tsinghua University, and Chief Editor ofScience and Culture Review. His main research interests are the history of ancient Chinese mathematics, the history of Sino-foreign scientific and technological exchanges, and the history of western learning. He graduated from the Department of Mathematics of Inner Mongolia Normal University in 1977 and studied at the Graduate School of the Chinese Academy of Sciences from 1978 to 1981. From 1981 to 2013, he worked at the Institute for the History of Natural Sciences, Chinese Academy of Sciences. From 2013 to 2017, he was employed by the Institute of Science and Society of Tsinghua University. From 1997 to 2005, he served as the Director of the Institute for History of Natural Sciences, Chinese Academy of Sciences; from 1999 to 2004, as the Editor-in-Chief ofStudies in the History of Natural Sciences, and the Chairman of the International Society for the History of Science, Technology and Medicine of East Asia; from 2004 to 2008, as the Chairman of the Chinese Society for the History of Science and Technology; from 2009 to 2013, as the President of the International Society for the History of Science; from 2005 to 2013, as a member of the 10th/11thCPPCC National Committee. In September 2019, he won the Kovaré Medal, which is the first time that the Medal was awarded to a Chinese since its establishment in 1968. His major works includeGreat Numbers(1993) andBasics of Culture(2006).