Also in 1972, the LDS Church hired Leonard Arrington as their historian. During Arrington's time as historian, Mormon and non-Mormon historians were allowed to access the LDS Church Archives. Much of the research in the 1970s used these newly-available sources to examine church history, sometimes in great detail. Leonard Arrington influenced important scholars of Mormon history, including Richard Jensen, William Hartley, and Ronald Walker. In 1969, Jewish historian Moses Rischin named the increasing amount of Mormon scholarship "the New Mormon History". The "New Mormon History" movement included the non-Mormons Thomas F. O'Dea, P. A. M. Taylor, Mario De Pillis, Lawrence Foster, the Community of Christ member Robert Flanders, and the Mormon scholar Kalus Hansen.