I suppose you can find one that kicked off the Jazz era?!? Or more specifically, you can tell us when *it stopped.
What? Jazz stopped? Damn, why didn't someone tell me sooner?
Actually, I think the last bastion of traditional jazz was Louis Armstrong's Hello, Dolly, which was the last jazz song to top the pop music charts, even beating the Beatles.
'Course, you still had Miles Davis's Kind of Blue, which sold more than any other jazz album. Maybe the "end" was when he sold out to pop culture. When music came out on the other side of the 70s, smooth jazz was the dominant form, and most people don't like Kenny G, the main flag bearer for the genre. See, I'm not totally off-topic
Wynton Marsalis is fairly well known, and jazz bands are common in high schools, so it's not totally dead.
