Sydney E. Ahlstrom is Professor of American Religious History at Yale University, and in his award-winning book, A Religious History of the American People (1972), he argued that the 1960s represented a revolutionary period in American religious life in which the largely Protestant and Puritan cultural consensus of American society disintegrated. Here he expands upon this thesis by considering the 1970s as well and the impact of these decades on American religious and cultural life. This essay originally...