[Arthur McGowan]

From 1800 to about 1960, probably nothing.

[piusv]

Here’s a couple of links:

http://www.onepeterfive.com/what-did-the-saints-say-about-islam/

http://defeatmodernism.com/defeatmodernism/popes-saints-state-islam-is-diabolic-false-religion9142012