Feeling ancient

So on Sunday Mr J had to bring the story of where we got his name and bring a family picture.  Well, Mr J was named after his great, great, great, great, great grandfather who was born in 1783.  I wrote this on a paper with a family picture and had it ready for Mr J to take to church.  Ben took all 3 girls earlier with him, so it was just Mr J and me in the car heading to church. 
J asked me "Mom, did you know this grandpa?" (meaning his 5 times great grandpa)

"No, he was born a long time before me." 

"Is he dead mom?" 

"Yes, he died a long time ago too."

"So, Mom, were you born after him?"

"Yes,"

"So when were you born, Mom, 17. . .? (and his voice trails off)

I about ran off the road.

"No, J, I was born in the 1970's not the 1700's"

Talk about feeling ancient.