The story about the tritone being forbidden by the church is a great story. I'd love for it to be true, but it's at least debateable according to most articles I've looked at

It was especially in Gregorian church music in Europe, don't think this kind of music ( which was sang a lot by monks in monestries ) existed in the states.

https://www.theguardian.com/notesandqueries/query/0,,-1767,00.html