Blankets with smallpox is a literally made up history fact that started in the 1940s because it sounded plausible. I used to need a pinned up selfpost on reddit for this fact lol.
There was 1. Literally 1… MAAAAAAYBE use of it being used as biological warfare at Fort Pitt… But even their own records people were like nah that shit’s stupid.
It’s about as stupid as when people started claiming the Blood is Thicker than Water quote wasn’t the full thing… then linking to Wikipedia who’s source was a literal Flatearther schizophrenic back2torah page lol.