Holy shit Veeky Forums, you've just been teleported back to 15th century central Europe

Confirmed for millennial brainlet

>le astronomy and telescopes
You're some random guy, you don't have access to glassmakers or metalworkers and unless you're that australian youtube guy I don't think you're up to making optical lenses and brass tubes from scratch
>le maths
Only viable if you can actually get in to see some learned scholars, convince them to give you some of their time, and teach them how it works and they see that you are correct.
>remove religion
hahahahahahaha
>sanitation standards
Historically most physicians and high class people were just insulted by the idea that they should wash because it implied that they were dirty to begin with, you'd either end up kicked out of wherever you suggested it or burned at the stake or something if you offended a noble.

well he never said it had to be realistic.

Party pooper

I invent the pyramid scheme.

I use the wealth I garner to leave time capsules in several churches to be opened at specific dates, containing several "predictions", some hyper-advanced memes, and stating that they are all divined by god himself. I also Would use my not very impressive calc knowledge to try and push a few math guys in the right direction. I know I'm not a pro, but even some of the things that we take for granted would be a game changer for them.

Then once I'm found out for the pyramid scheming fraud I am, I get crucified to a raft, smeared with honey, and pushed out into the middle of a pond.
Every day they would force feed me, as the insects slowly eat away at my flesh, until eventually maybe 2-4 weeks later I finally die from blood poisoning or necrosis or something like that.

Also, if I have the chance, I would pay several blacksmiths to forge the most absurd looking pieces of armor and weapons I could think of at the time, and hide a lot of them in bogs and such, to fuck with all the medieval re-enactment groups that will end up wearing dildohelms just to be genuine.

Basic maths and natural sciences (Newtonian physics) and electricity.

Try to establish the scientific method.

Only intelligent response in this thread. Advancing science just means stupid people will be more destructive.

Make my way home to England and introduce the germ theory of disease, calculus and the scientific method.

I write a book in the style of Principia Mathematica split into various volumes on:
- Algebra and Pre-Calculus
- Calculus
- Differential Equations
- The scientific method
- Classical physics
- General chemistry
- General biology

I then spend the rest of my life handing out copies of the book to monasteries and printing presses all around Europe, and trying to teach as much as I can.

Hopefully I'll remain alive long enough to be influential in some courts of Europe.

This sort of makes sense
We all assume that scientific advances will only bring prosperity, but without the corresponding cultural advancing it doesn't have to be that way