Elevation of Diocese of Honolulu

Date: January 25, 1941 • Location: Honolulu, United States

Pope Pius XII elevates the Apostolic Vicariate of the Hawaiian Islands to the dignity of a diocese. It becomes the Roman Catholic Diocese of Honolulu.

Pope Pius XII was head of the Catholic Church and sovereign of the Vatican City from 2 March 1939 until his death in 1958. His pontificate spanned World War II, the Holocaust, and the first years of the Cold War. He is the most recent Pope to take the name Pius.