I'm going to sound like an old person, but back in the days, not long ago, when we needed to get some information, we couldn't just grab our smart phones and google it, no. We had to have the doubt in our heads for a while if the info was not available in any of the encyclopedias we had at home and we had to go to the library. And this is where this is from. Those are the cards in a card catalog. Remember that? The main public library downtown in my city had a huge card catalog. And the librarians were so good and fast, and they were always helpful.
Please SHARE if you remember going to the library.....