Relatedly, somewhat, I've been reading a lot of 19th century French literature (because I'm French and because my sister is a literature teacher who's been "assigning" me stuff to read).
It has been somewhat shocking to see how relevant the writing is seen through a 21st century lenses. Whether it's how media works, how cliques of people function, etc.
It truly feels timeless in a way that I've found very surprising. It also very much supports notions that people don't change even if means and methods do.