Absolutely beautiful. Thanks so much for the tour and history lessons. I'm wondering if early germanic influences may have contributed to the 'Vistula' question. They do pronounce a 'w' with a 'v' sound....in german the 'w' is called doublavay (pronounced that way ((doo-blah-vay)) but spelling is wrong).
Always a delight to read your posts.
Blessed Be.
Thank you for your meaningful comment ❤