There is definitely something to be said for making a mistake! In 1889 an Italian librarian looked at the writing on a parchment Torah scroll (the 5 Books of Moses) and decided that it was probably an inferior 17th century copy. He felt that the copyist must have been clumsy and that the letters were uncommon and strange.
Fast forward to the present time (and technology) and we find that the scroll was written between 1155 and 1225! The “uncommon and strange” letters were based on the Babylonian tradition of writing Hebrew rather than the Palestinian style with which our librarian was familiar. The benefit? The scroll is in perfect condition because it was mis-catalogued, and the world has the oldest existing complete Torah.
Read more about this wonderful find on National Geographic’s website: