Briefly, "Evangelicals" of the 18th and 19th centuries were fundamentalists. The word "Fundamentalist" began to be used (after 1925 especially) for those continuing in that expression of doctrine and manner of Christian life, when those calling themselves "evangelicals" began to be ultra-inclusive, and more worldly in their outward expression.
when those calling themselves “evangelicals” began to be ultra-inclusive, and more worldly in their outward expression.