There were whiteboards in 1990?
I'm almost 30 and didn't see a big whiteboard until high school when chalkboards started being replaced. If that could have been done at least 10 years earlier then someone owes me and many other people reparations for all the nail-on-a-chalkboard feelings when chalk-to-chalkboard contact went awry. Then there's all the chalk dust. Was the delay due to cost or the fear that we'd be excessively sniffing the markers?
(this signature was absent on picture day)