January 6, 1917. "Judge" Joseph Franklin Rutherford succeeds Charles Taze Russell as head of the Watchtower Tract Society ("Jehovah's Witnesses"). Source: Donald L. Platt, Counterfeit? (Manila: OMF Literature Inc., 1981; reprint 2001), p. 74. Click here for more articles on this sect.
January 6, 1928. Pope Pius XI issues Encyclical called "Mortalium Animos." Among other ideas, "It restates the Roman doctrine of the Church as a perfect, visible society, gathered under one head, infallible in its teaching, and having the divine promises of perpetual duration." [Source: Georges A. Barrois, "Mortalium Animos" in Lefferts A. Loetcsher, ed., Twentieth Century Encyclopedia of Religious Knowledge (Grand Rapids: Baker Book House, 1955), p. 756.]