It's been a pretty hectic day, so my post will be short. Also, I'm getting some pretty crazy responses to some of my posts... (Yes, WD... I think I agree with your grandfather on this one... maybe you should have kept those thoughts to yourself. I'm sure you hurt both of our feelings...)
To my students: today, just tell whoever you're discussing this a little bit about timelines. What does B.C. stand for? A.D.? B.C.E.? C.E.?
On a piece of scrap paper, draw a timeline that includes both AD and BC dates. Then have the person you discussed the blog with sign the paper.