So are we trying to pick when and where you would be born? If you just take your current circumstances and move them back however many years, none of us would be sailors in Europe. More like indians or cowboys in the middle of the states.
But if you could take some of your current knowledge/size/abilities back to where and whenever, there are pretty much endless possibilities. I mean, you could be a stud football player 60 years ago and then bring the spread attack, west coast offense, and read option to football 40 years ago and basically be better than Bear Bryant at KSU. And be super rich investing in pretty much anything.