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Closest match: Bombyx mori BmN4 cell DNA, chromosome 24, sequence Common name: Domestic Silk Moth

Silly idea I had for Pride Month 🏳️‍🌈💖

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this is exactly what teamwork looks like after long attempts to kill each other

what does this have to do with boiling your surgical tools? well look, the boiling water releases bubbles of steam which carries the malign influences up to heaven. you boil a knife, you send all the miasmic particles off with the steam to heaven. if you rinse the knife off in a bucket the water isn't hot enough, the particles go into the water and then right back on to the knife. you gotta boil it to get the particles all the way away. how can a tool or rag or a bed have miasmic particles on it when you can't smell them? humans have a lousy sense of smell. look at your dog on the hunt. are there no rabbits in the woods just because you can't smell them? we know that miasma is carried on the air, and is what makes stench so dangerous, and we know that humans can't smell worth a damn compared to dogs cats horses etc. a dog can smell if a rat died in a corner of the room last week. you can't. do you think licking the spot where the rat died is going to go well for you? luckily, what humans lack in snout we make up for in brains. we have extra brains where our sniffers should have been. God set that up for a reason.

and why does a rinse with wine spirits work? man, look how fast alcohol evaporates. my guess is that because wine contains a lot more vice than water, it evaporates a whole lot faster, in sort of an equal and opposite way that a rock falls faster than a feather. if you want the miasmic particles to get off there FAST, you dunk it in something that's going back to heaven at a gallop.

people have long known about clean water tho. Like, in about 400 bce Hippocrates (of hippocratic oath fame, which iirc was originally much more about preventing medical guild wars by swearing to only do your own kind of medicine) used to boil water and then pour it through a filter to use for washing patients etc.

From around the same time in India, texts have been found also saying water should be boiled and poured through a filter

Central America had filtration systems for water that are very similar to some we still use today, specifically ceramic filtration.

In Arabia they used wick-filters, which i find interesting, whereby water gets pulled through a material via the natural wicking properties of the material itself. Depending on the material, this can be sufficient to remove almost any bacteria, but not viruses. Still, pretty good.

The medieval european period did have a lot less science going on in general, and specifically in the area of water purification, which was mostly centered on trying to make the water look clear via visible particle filtration. Some people in some areas did also boil the water, and it was generally understood that rain water was cleaner than most other water, tho rainwater is not by any means sterile (and modern rainwater is pretty polluted from human activities and is even less safe to drink that it used to be). Still, they knew clean water was important and did make some effort to purify their water and be clean.

For example, many people in medieval europe habitually washed their hands before eating, and, while they didn't use boiled water or soap, simply scrubbing your hands thoroughly and energetically in fresh water will clean your hands of about 70% of the germs on them, which is a lot better than nothing, and while they couldn't say much about germs or a percentage of them, they did know that washing your hands was healthier than not washing them.

And in the renaissance era, it again depended on where you were and exactly when. In 1143 Portugal, one monastery founded the Cistercian Order (or like, the Order of the Cistern - a cistern is a water tank) and they had a rainwater collection and purification system and a sustainable sewage system including an effective waste-water treatment plant to make waste-water safe enough to use in the garden, so there were definitely some pretty decent understandings of water cleanliness going on there.

Anyway, ancient people definitely recognized the value of sterile water and often knew how to accomplish it.

The ancient Egyptians used to sterilize their medical tools with just literal fire or high temp ovens (which does sterilize them). They often additionally used antiseptic substances to rinse them, and also to treat wounds. As well, though this was likely more due to availability, their surgical instruments were usually copper, which is a natural anti-microbial material.