History draws from diverse fields including archaeology, paleoanthropology, astronomy, and biology and raises new questions about the future of our species and its relationship to the biosphere. The articles included, several written by big-history author David Christian, convey big historys span and scope from cosmology, creation myths, and the Gaia theory to ice ages, extinctions, and migrations. Big History also explains why many geologists believe the world entered a new geological epoch, the Anthropocene, at the beginning of the Industrial Revolution, when human activity unwittingly became the single most important force for change in the biosphere.

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