Christian fundamentalism
Christian fundamentalism, also known as fundamental Christianity or fundamentalist Christianity, in its modern form, began in the late 19th and early 20th centuries among British and American Protestants as a reaction to theological liberalism and cultural modernism. Fundamentalists argued that 19th-century modernist theologians had misinterpreted or rejected certain doctrines, especially biblical inerrancy, which they considered the fundamentals of the Christian faith.