Freemasonry, as a fraternal order of scientists and philosophers, emerged in the 17th century and represented something new--an amalgam of alchemy and science that allowed the creative genius of Isaac Newton and his contemporaries to flourish. In Isaac Newton's Freemasonry, Alain Bauer presents the swirl of historical, sociological, and religious influences that sparked the spiritual ferment and transformation of that time. His research shows that Freemasonry represented a crossroads between science and spirituality and became the vehicle for promoting spiritual and intellectual egalitarianism. Isaac Newton was seminal in the invention of this new form of Freemasonry, which allowed Newton and other like-minded associates to free themselves of the church's monopoly on the intellectual milieu of the time. This form of Freemasonry created an ideological blueprint that sought to move England beyond the civil wars generated by its religious conflicts to a society with scientific progress as its foundation and standard. The science of these men was rooted in the Hermetic tradition and included alchemy and even elements of magic. Yet, in contrast to the endless reinterpretations of church doctrine that fueled the conflicts ravaging England, this new society of Accepted Freemasons provided an intellectual haven and creative crucible for scientific and political progress. This book reveals the connections of Rosslyn Chapel, Henry Sinclair, and the Invisible College to Newton's role in 17th-century Freemasonry and opens unexplored trails into the history of Freemasonry in Europe.