Prehistoric humans turned their campfires into makeshift movie theaters
https://edition.cnn.com/2022/04/21/europe/prehistoric-art-fire-light-moving-images-scn/index.html
I had thought that initial movie among mankind was invented as picture-story show, though the fact seems that it was painting radiated by firelight.
But, when I think about it seriously, judging from the era when paper was not invented, picture-story show shouldn't be invented.
