In the Church of Jesus Christ of Latter-day Saints (LDS Church), the Priesthood Correlation Program (also called the Correlation Program or simply Correlation) began in 1908 as a program to reform the instruction manuals and curriculum of the different organizations of the church. Its scope quickly widened and Correlation came to have large effects on almost every aspect of the church including doctrines, organizations, finances, and ordinances. A significant consequence was to centralize decision making power in the priesthood, particularly the Quorum of the 12 Apostles. More recently, the function of the correlation department has shifted to planning and approving church publications and curriculum and keeping unorthodox information, doctrines and other undesired concepts from being introduced or revived.