Proper old-style, literally hung from a tree and executed by a mob of over a thousand? Well over 70 years ago, it would have been prior to the 1950's.

Even Emmitt Till wasn't lynched. He was murdered by 1 person with, I think 2 accomplices.

Even when I say "Kyle Rittenhouse defeated an attempted lynching", I mean it in it's denotative sense: A violent group of disorganized people declaring itself the final arbiter of justice and extra-judicially executing a scapegoat for their emotional state. Not in it's stereotypical sense of literally having a bloodthirsty crowd of hundreds or thousands braying to see a hanging.

Even White Supremacist murders or assassinations don't qualify as lynchings, and those would have continued well into the 70's, but your classic picture of a lynching would have basically stopped by the 40's & 50's. Southern governments, even under Jim Crow, actually tried to stop them for decades, but the influence of the Klan in state governments, and the utility of state-tolerated terrorism served too many people in government and the media too well.

They do the same thing with "Red-Lining". Red Lining as a process was invented as a policy under the Wilson administration at the turn of the century. Redlining was abolished by the federal government (because it was a federal program) back in the 50's.

Red-Lining literally doesn't exist. What they call "red-lining" is literally just "white people living in places I don't want them to live" or "black people NOT living in places I want them to go."