This is completely anecdotal, but when I were but knee-high to a nibbet, back in the nineteen-seventies, here in the UK we very seldom heard anything of "Christians." When the word was used, it was almost exclusively used to refer to the early church—those people who the Romans persecuted and all that. People of the various Christian faiths referred to themselves first and foremost, and were referred to, as Anglicans, Catholics, Presbyterians, Baptists and so forth.
There was, I suppose, a small change when Life Of Brian came out. (I was fourteen at the time, and got in to see it by the time-honoured method of half a dozen of us clubbing our pennies together to pay for a friend, who looked eighteen with a bit of make up on, to get in "legally," and having her open the fire-door in the toilets after the lights went down. But I digress.) Then, all of a sudden, a few talking heads and rather odd fringe (not to mention "beard." I'm here all week folks…)-religionists appeared in the public view, who called themselves Christians first and [name of sect] second. But they were in a definite minority (though, as ever, disproportionately loud), with even many mainstream believers looking somewhat askance at them.
These days, it seems we're swamped with people who label themselves Christian, and who (with the exception of Catholics), never seem to want to even mention which of the many Christian traditions they follow.
It's not really an important point. More of a musing than a point, in fact. I do kinda wonder whence came this change of attitude, though.
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