Christian fundamentalism began in the late 19th- and early 20th-century 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, that they viewed as the fundamentals of Christian faith. A few scholars regard Catholics who reject modern theology in favor of more traditional doctrines as fundamentalists. Scholars debate how much the terms "evangelical" and "fundamentalist" are synonymous.