1975, I was there in the years leading up to it. It was all anyone talked about and how there was no point striving for anything in this system (I didn't) because the end was coming in 1975.
I was a child at the time. I stayed for years after that because I was a child. It was when it was mentioned many times after that and people denied it. Especially when I brought up the subject to new ones who weren't there at the time. I argued with them. They said no they never said that. Other things also had bothered me, that only jws would survive Armageddon.
I stopped going years ago with these doubts. It was only in the past few years that I started researching on the internet and were my eyes opened!