David Christian (D.Phil. Oxford, 1974) is by training a historian of Russia and the Soviet Union, but since the 1980s he has become interested in world history and in history at very large scales and across many disciplines.
He has written on the social and material history of the 19th century Russian peasantry, in particular on aspects of diet and the role of alcohol. He has also written a text book history of modern Russia, and the first volume of a synoptic history of Inner Eurasia (Russia, Central Asia and Mongolia). In 2004, he published the first monograph on 'Big History', Maps of Time. With Bill Gates, he is co-founder of the 'Big History Project' (school.bighistoryproject.com/bhplive), which has built free on-line high-school courses in big history. Since 2013, he has been Director of Macquarie University's Big History Institute (bighistory.mq.edu.au), and led the collaboration of twenty academics across all faculties to develop Macquarie University's MOOC on big history: "Big History: Connecting Knowledge", on the Coursera platform (www.coursera.org/learn/big-history).