Advocating in 1790 for the adoption of card catalogues, the German librarian Albrecht Christoph Kayser cited the “common mistake of employees that they believe they will live forever.” Workers “arrange their shops without regard for their successors, considering them well kept in their own memory, without written notes, thus making it impossible for those eventually taking their place, or at least making it infinitely more complicated for anyone to pick up the thread of those who have been called to meet their maker.”

According to a biographer, Honoré de Balzac called out on his deathbed for Dr. Horace Bianchon, a fictional creation that appeared in thirty-one of his stories. “Send for Bianchon,” the novelist said to his attending physician.