Probe Nostis
On the Propagation of the Faith
Read the official textpapalencyclicals.net
Original text published before 1931: public domain in the US. Modern English translations (e.g. vatican.va's) may still be under copyright.
Cite this page
This catalogue
Probe Nostis (1840). On the Propagation of the Faith. docs.church. https://docs.church/probe-nostis
Official citation
Gregory XVI, Probe Nostis (18 September 1840). https://www.papalencyclicals.net/greg16/g16probe.htm