>>701
> philosopher's stone
> plutonium is a metal
> ununoctium is a metal
> effective ability to convert 1-10% of matter in an unspecified area into energy by willing it
Okay, so this is the most horribly dangerous and overpowered artefact in the hands of anyone who has had a high school education. I have to take this one just because I can't trust anyone else to own it.
So I guess I'll just have to start an industrial revolution and kickstart modern society, since it looks like I'll also be transported into a positively primitive place. This means forming alliances, which surprisingly isn't done very effectively by brainwashing everyone near you. Trade is far more useful. To that end: vitalism (to be able to sell to individuals) and goggles of revealing (to be able to negotiate unequally).
The Archives are probably a good place to set up, to grow quickly and invent new cures, hopefully including a cure for ageing at some point. At the same time, study the Philosopher's Stone for safer en masse use.
I choose none of the listed affiliations. The Judicators would make good allies, but actually fighting is so uncivilised.
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First study. When I'm ready (e.g. I can cure radiation poisoning), cure some leader of a large, stable and progressively minded country in exchange for patronage. Start educating people and doing things: Introduce science, production lines, steam engines, nuclear power plants, academia, chemical weaponry and rocketry, and spend hours I don't feel like thinking curing the sick.
To make steam engines and other metal contraptions affordable, industrial mining needs to be set up. Francium makes a decent substitute for TNT, assuming a suitably desiccated environment can be produced, allowing for open-top mining. Combustion engines might be possible, but I don't see a safe way how, using only metals. Perhaps it would be necessary to ally with/invade other countries for their oil. Otherwise everything would have to be done with steam engines.
With enough automation, it should be possible to make radioisotope thermoelectric generators en masse, flooding the market with cheap sources of heat and later electricity and mechanical motion.
Also try to invent magical rejuvenation. It would be quite lame if "healing" can't do it, but blood magic can.
In fifty years, this should be at 1880s level tech. In a few hundred, it should have surpassed us, and hopefully I'll still be alive to see it.