David Christian

David Christian is an Australian historian and the pioneer of "Big History," a field that examines the past from the Big Bang to the present day. He is Distinguished Professor Emeritus at Macquarie University and co-founder of the Big History Project with Bill Gates. Christian's groundbreaking work synthesizes insights from cosmology, geology, biology, and human history to create a unified narrative of existence. His influential books include "Maps of Time" and "Origin Story," which explore how complexity has emerged over 13.8 billion years. Christian's interdisciplinary approach has transformed how we understand humanity's place in the cosmos.