Wow. It sounds like you have a grossly misinformed view of this part of the world, with a clear sense of superiority of one culture over the other. So, here's a few facts for you:
> Most likely on October 12-13, 1944, the Brandkommando of the Wehrmacht (Nazi German army) burned collections of the most valuable literary monuments from the National Library in one of the greatest losses to Polish culture in its history, and one of the greatest losses to written culture in history of the world. The National Library lost at least 39,000 manuscripts – and most likely more, perhaps as many as 50,000 – along with some 80,000 books from the fifteenth to eighteenth centuries, 100,000 books from the nineteenth and twentieth centuries, 60,000 drawings and engravings, 25,000 musical scores and 10,000 maps. The great family libraries were almost wiped out, such as the famous collection of manuscripts of the Krasiński Library, of which just 78 volumes survived out of more than 7,000.¹
¹ https://www.bn.org.pl/en/news/3855-75-years-ago-the-germans-...