When did the post-punk divide begin?

Probably with Wire and Gang of Four.

>>74960433
Never since there's no such thing.

>>74960453
Did they consider themselves post-punk at the time or is it just a label we used retroactively?

>>74960505
Retroactively. I believe positive punk was thrown around a bit, mostly I've heard it in reference to joy division and the first goth bands.

Post-punk was used as early as 1977. Punk is such a dead end that if anyone sounded punkish but made it a little more complicated it was immediately worthy of being called post-punk.

>>74960575
Yet you get people involved in different scenes that incorporated experimental elements (crass) that were still classed as punk (in crass' case anarcho punk)