The 1986 statement Methods of Bible Study, "urge[s] Adventist Bible students to avoid relying on the use of the presuppositions and the resultant deductions associated with the historical-critical method." Seventh-day Adventist approaches to theology are affected by the level of authority accorded the writings of Ellen White. Mainstream Adventists believe that White had the spiritual gift of prophecy, but that her writings are subject to testing by the Bible, which has ultimate authority. According to one church document, "her expositions on any given Bible passage offer an inspired guide to the meaning of texts without exhausting their meaning or preempting the task of exegesis". "The Inspiration and Authority of the Ellen G. White Writings", document was issued by the Biblical Research Institute of the General Conference of Seventh-day Adventists. It has received worldwide review and input, although is not an official statement. It concludes that a proper understanding will avoid the two extremes of regarding her "writings as functioning on a canonical level identical with Scripture, or […] considering them as ordinary Christian literature." Adventist theology is distinctly Protestant, and holds much in common with Evangelicalism in particular. However, in common with many restorationist groups, Adventists have traditionally taught that the majority of Protestant churches have failed to "complete" the Reformation by overturning the errors of Roman Catholicism (see also Great Apostasy) and "restoring" the beliefs and practices of the primitive church—including Sabbath keeping, adult baptism and conditional immortality. Adventists typically do not consider themselves part of the Fundamentalist Christianity community: "Theologically, Seventh-day Adventists have a number of beliefs in common with Fundamentalists, but for various reasons have never been identified with the movement... On their part, Adventists reject as unbiblical a number of teachings held by many (though not all) Fundamentalists..." Seventh-day Adventist theology has undergone development from the beginnings of the movement. Doctrinal development has been associated with significant events, including the 1888 Minneapolis General Conference and discussions with evangelicals in the middle of the 20th century which prompted the publication of "Seventh-day Adventists Answer Questions on Doctrine". As a consequence of these developments, different theological streams have emerged which today exist alongside the mainstream of the Church. While Adventism is a child of the 16th century Reformation initiated by Martin Luther, John Calvin and Ulrich Zwingli, its theological orientation really finds itself at home with the Radical Reformation or the Anabaptists.