Pope Leo XIII (b. 2 March 1810 – d. 20 July 1903), born Gioacchino Vincenzo Raffaele Luigi Pecci, began his pontificate on 20 February...

In this encyclical published in 1844, Pope Gregory XVI warns of the dangers of the numerous translations of the Bible.

Pope Gregory XVI’s encyclical in response to Lammenais’s writings on religious indifferentism and liberty of conscience.

Pope Gregory XVI’s encyclical on religious indifferentism, liberty of conscience and revolutionary sentiments.

Pope Pius VIII’s encyclical on religious indifferentism, unauthorized translations of Scripture and secret societies.