Dwight Lyman Moody was one of the most significant evangelists of the nineteenth century. He is remembered primarily for his role as a popular preacher in the revival that occurred throughout the United States of America and the United Kingdom during his lifetime. D.L. Moody was one of the most notable evangelists in the last two centuries. The principal elements of his revivalism were large meetings where he constantly preached on what he considered the central theme of Christianity, that is, salvation through personal faith in Christ.