On 8 October 1947 Herbert W. Armstrong, founder of the Worldwide Church of God, established Ambassador College in Pasadena, California.

Archbishop Athenagoras I was enthroned as patriarch of the Greek Orthodox Church on 22 January 1949.

On 7 July 1946 Pope Pius XII canonized Mother Frances Xavier Cabrini of Chicago as the first American saint for having established convents and orphanages in several cities around the world. She died in 1917.

Under the Espionage Act of 1917, the U.S. government on 14 April 1942 banned the anti-Semitic weekly Social Justice, published by Father Charles E. Coughlin of Detroit.

On 8 November 1944 the Most Reverend Richard J. Cushing was installed as archbishop of Boston, making him, at forty-nine, the world's youngest archbishop. On 13 October 1947 Cushing opened the ninth annual convention of the Congress of Industrial Organizations (CIO) by noting that members of the Catholic hierarchy in the United States are, without exception, sons...