Norse mythology seems to be a "big thing" in Western entertainment right now, with Thor leading the MCU and God of War: Ragnarok being a huge hit. It got me thinking about its transition into the cultural lexicon. When did that transition occur?
Rather early, it seems. As u/y_sengaku and u/Platypuskeeper describes here, already in the 1200s Christian Icelanders wrote and recorded poetry about the Norse gods