David Christian is an experienced and passionate teacher of Big History, a field of study that looks at the history of the universe from the Big Bang to the present day. He has a deep understanding of the subject and is able to explain the complex concepts in an engaging and accessible way. He
David Gilbert Christian is a historian and scholar of Russian history. He has become notable for teaching and promoting the emerging discipline of Big History. In 1989 he began teaching the first course on the topic, examining history from the Big Bang to the present using a multidisciplinary approach with the assistance of scholars in diverse specializations from the sciences, social sciences, and humanities. Big History frames human history in terms of cosmic, geological, and biological history. Christian is credited with coining the term Big History and he serves as president of the International Big History Association. Christian's best-selling Teaching Company course entitled Big History caught the attention of philanthropist Bill Gates, who is funding Christian's efforts to develop a program to bring the course to secondary-school students worldwide.