There is a 600 year old 240 paged book called the Voynich Manuscript, that’s written language is still completely unknown today.
15
The Main Library at Indiana University sinks over an inch every year because when it was built, engineers failed to take into account the weight of all the books that would occupy the building.
240
Mathematical proof that 1+1=2 takes 162 pages to explain in the three volume work “Principia Mathematica”.
35
Ernest Vincent Wright wrote a 50,000 word book titled 'Gadsby' which did not use the letter "e".
10
A man with locked-in syndrome, named Jean-Dominique Bauby, wrote an entire book by blinking his left eyelid.
11