"Back Then."

One of my undergraduate students, during a class discussion in which I had talked about the fringe nature of anime fandom when I was a student, opened his statement with "I don't know what things were like back then, but..."

Back then.

Back in your day.

Days of yore.

I'm 30 years old guys. 30. I know it seems old when you're 20, but does it really deserve a "back then"? f(^_^;