First Vatican Council, also called Vatican I, (1869–70), 20th ecumenical council of the Roman Catholic Church, convoked by Pope Pius IX to deal with contemporary problems. The pope was referring to the rising influence of rationalism, liberalism, and materialism.
Looking Back to the First Vatican Council. This article describes the influences on Vatican I and how it shaped the next Vatican council.
Decrees of the First Vatican Council. A transcription of the decrees from Vatican 1, with an explanatory introduction.
