Short related story. When I was in first grade in the 80's, all of our chalk boards were being upgraded to white boards. The teacher used it as an opportunity t

Short related story. When I was in first grade in the 80's, all of our chalk boards were being upgraded to white boards. The teacher used it as an opportunity to be a kind of time capsule. We each wrote our names and something personal on the boards. Later they placed the white boards over them. It wouldn't surprise me at all if those boards are still there to this day.