Perhaps only Linda will understand my appreciation for this bit of filing history, but it is directly related to my graduate studies of information management. Erin on unclutterer.com references a chapter concerning filing systems in an arcane book about the history of business management.
Today, we all know and use systems of vertical paper files, you know, pendaflex and manilla folders. They may be organized by subject, or alphabetically or even chronologically, but the mechanical structure is the same with pieces of paper stored in a vertical position.
But it wasn’t always so, and Erin shares that vertical filing was invented in 1893, and prior to that there were other systems doomed to fail.