The late 90s was the first time I'd heard of them. I was a university student at the time, and one of my friends was a foreign student, from America, and a fan. He also liked this other band called The Grateful Dead. I'd never heard of them either. They sucked too.

(Though, that said: many years later - i.e., quite recently - I listened to a bunch of their stuff on YouTube, while thinking back to my student days. And, actually, some of it is pretty good. At least, it was when they had pigpen singing.)

(Also: if you are a connoisseur of almostbutnotquiteinsanepersonposting, allow me to highly recommend The Grateful Dead's sound engineer's series of posts about his diet: https://justmeat.co/archives/active-low-carber-forum-posts/)

Anyway, if it's from the last century, it's old timey to me.

now - 29 years = 1996: Phish - Billy Breathes

1996 - 29 years = 1967: The Doors - Light My Fire