In Saving Faith, David Mislin chronicles the transformative historical moment when Americans began to reimagine their nation as one strengthened by the diverse faiths of its peoples. Between 1875 and 1925, liberal Protestant leaders abandoned religious exclusivism and leveraged their considerable cultural influence to push others to do the same. This reorientation came about as an ever-growing group of Americans found their religious faith under attack on social, intellectual, and political fronts. A new generation of outspoken agnostics assailed the very foundation of belief,...