I have heard that the whole idea of calling heretics and schismatics "separated brethren" came only after Vatican II, or that it was put into use only after Vatican II and that supposedly one should never use such a term.
Well, i have read several things against Protestants from the 1800's, like, "The Church or the Bible", "Where we got the Bible: the debt we owe to the Catholic Church" and other such works against Protestantism, and they all use "separated brethren"!
I myself was very surprised when i first saw that.
So what's going on here?