The most batshit thing I've seen is this post about EATING IN THE 50s that is basically just a thinly-veiled rant against 'ethnic' foods that seriously claims, among other things, that pasta hadn't been invented yet, 'curry' was a surname and not a food, no one had heard of yogurt, 'kebab' wasn't even a word yet, much less a food, and that no one knew what 'pizza' was other than 'Isn't that that leaning tower'?
I don't think I even need to say that pasta, curry, yogurt, kebabs, and pizza all existed long before the 19-*******-50s lol.