BTW. Show anyone born in 80's & later a rotary phone. See the looks you get as they can't figure out how to call someone,lol                                                                                     
Eh, I would late 80's or 90's.  I was born mid 80's (hence the tag...) and had plenty of experience with rotaries.  God I hated my one friend who's number ended in ***-***-0990.  Took 15 minutes to dial!   

Then we got to the modern science fiction tool called "the overhead projector".
God we used to screw with those things all the time.  A quick half turn of the bulb and out it went.   
