Inter praecipuas machinationes, or On Biblical Societies,[1] was an encyclical issued by Pope Gregory XVI on 8 May 1844, condemning Protestant translations of the Bible.

[2] He accuses the Christian League, in New York, of "inciting sedition",[1] converting Catholic Italian immigrants to Protestantism by encouraging them to form their own interpretations of the Bible.

[3] Many American Protestants saw Gregory's position as conceding that Catholic doctrines were unbiblical.

[4] Protestant groups like the Plymouth Brethren took the encyclical as evidence that Catholic countries were in need of their missionary labor.

This article related to an official document of the Catholic Church is a stub.