https://www.abc.net.au/radionational/programs/latenightlive/the-untold-story-of-christopher-columbuss-bibliophile-son/11059998
This is an extraordinary story of an attempt 500 years ago to collect copies of every book then in existence and now the emergence of the catalogue summary to all of it
There are 2 interesting podcasts in the Late Night Live archive discussing this if you care to seek them out.
