Note 999 — Chapter XVIII · Religious Instruction.

Pope Leo XIII., when still Cardinal Archbishop of Perugia, published a revised and enlarged edition of Bellarmine’s Catechism. At the Vatican Council (1869–70), it was the wish of Pius IX. that a catechism, which should be essentially that of Bellarmine, should be adopted as the uniform and official catechism for the whole Catholic world. Messmer, l. c., p. 536.