1) This was the time of various plagues so I would seek out the top medical people in the land and try to convince them of how infections spread.
2) This was also a time when only the wealthy could afford education. So I would try to somehow influence the setting up of free schools, particularly focussing on sciences and try to promote research into inventions such as steam power, electricity and medical advances such as penicilin. That way I could influence advances without being accused of being a witch. I would simply be helping the population advance faster than they would normally but allowing them to discover inventions I already know would work.
I'd also change my name to John Titor for the lols.
2) This was also a time when only the wealthy could afford education. So I would try to somehow influence the setting up of free schools, particularly focussing on sciences and try to promote research into inventions such as steam power, electricity and medical advances such as penicilin. That way I could influence advances without being accused of being a witch. I would simply be helping the population advance faster than they would normally but allowing them to discover inventions I already know would work.
I'd also change my name to John Titor for the lols.