I was talking with a student and giving him some background knowledge and some words he'd probably need help with as he read the Magic Tree House book, Monday with a Mad Genius (about Leonardo da Vinci). I told him that he lived a long time ago and he replied with, "1999?"
I smirked. "No, earlier."
"The early 80s?"
"No, the 1500s. That was over 500 years ago."
"Dang, I wasn't even born yet."
I just smiled and walked away.