On 3 June 1939,
Pope Pius XII established the Diocese of Resistencia from the
Archdiocese of Santa Fe. It lost territory to the
Diocese of Formosa when it was created in 1957 and to the
Diocese of Presidencia Roque Sáenz Peña in 1961. The Diocese of Resistencia was elevated to an archdiocese by
Pope John Paul II on 28 February 1984. ==Ordinaries==