[Steely Tom]

Actually heroin started rising in popularity in the mid-00s, something about freer and easier travel in and out of Afghanistan and meth’s popularity was winding down.

Way before that.

Look up Nicky Barns and Frank Lucas. Together, they flood Harlem (and NYC) with so much smack that Harlem looked like a theme park for zombies.

[discostu]

That’s part of the cycle. But after their era we get the coke fueled late 70s and 80s, then coke morphs to crack in the late 80s and 90s, heroin had a quick resurgence in the mid-90s, but then meth hit big for late 90s into the 00s, and now has been replaced again by heroin.