I had a similar one a few years ago when I'd discovered that Henry Heimlich of manoeuvre fame was still alive. (I checked it again now and he'd died in 2016.)
I was reading about this a few months ago. It blew my mind that the Heimlich maneuver didn't exist until the mid 70s. So, what, you just died before that? I guess the only "tool" we had was the ol "reach down their throat with your fingers and try to pull it out manually" technique.