Evening CoSo, grab your beverage of choice; it might be time to go looking for an original set of Encyclopedia Britannia for our grandchildren. 
@pendrag My Dad has both, and two sets of the encyclopedia. I was going to throw them out but now.... needed history for the future.
@ACG2
Gives me another excuse to visit local used book stores, will start asking around. It looks like World Book still prints updated sets annually.
@ACG2
Hadn’t even thought of them, and they usually have decent price.