Professor Michael York is a UK-based American Religious Studies scholar who specialises in the study of pre-Christian European religion and its relation to contemporary Paganism. In 2003, he published Pagan Theology, in which he put forward the idea that the ancient pre-Christian and pre-Islamic religions of Eurasia, indigenous religions from across the globe, and contemporary Pagan faiths could all be constituted as forms of paganism. His publications include The Emerging Network (1995), The Divine versus the Asurian: An Interpretation of Indo-European Cult and Myth (1995), Pagan Theology: Paganism as a World Religion (2003) and Pagan Ethics: Paganism as a World Religion (2016).