The Big TentBilly Graham was a well-known evangelist of the 20th century, who became famous not only for the content of his sermons but also for his close relationship with well-known politicians and famous leaders of those times, who helped him become the symbol of evangelicalism by “branding evangelicalism as the mainstream American faith” (The Big Tent 31). Graham's religious beliefs moved from the fundamentalism he was raised with, to an open and liberal conception of faith, and into what was called the new evangelical approach to religion, a more moderate and tolerant way of interpreting God's message. How he self-described, was “a theological conservative but a social liberal” (The Big Tent 28). Much like Graham, over the course of the 20th century people's religious beliefs went from one extreme to the other through a more moderate expression of those beliefs, accompanying social and political events taking place at the same time. By the year 1900, general religious belief was based on certain principles that were considered the basis of true faith: the Bible being the only truth, the divinity of the Virgin-born Jesus Christ, the bodily resurrection of Christ, and the existence of biblical miracles. At the same time, Darwin's theory of evolution initiated a different approach to religion that placed greater emphasis on the humanity of Christ and questioned the divine quality of creation. Although in 1918 there were other religious trends (such as Baptists, Methodists and Presbyterians) that differed from each other, all had a shared orthodoxy, Darwin's theory changed this scenario giving ground to a new expression of religious beliefs: modernism, which would promote the concept that God can be seen in the evolution of man on earth. As a result, some Presbyterians and Baptists began practices based on the new liberal approach to Christian orthodoxy, while their opponents (now called fundamentalists) claimed that liberal theology was a false religion that could not exist alongside what they called true religion. faith (as claimed by the theologian J. Gresham Machen). Soon, these arguments led the modernist controversy to overtake the success of Christian missions, and by 1940 fundamentalism was no longer as popular as it once was. The fundamentalists began to divide even within their own group giving rise to the so-called separatists, who were the most radical believers.