How would you change history?

[MARCVS PETRONIVS MAIVS]

Hmmn. I do respect religions right to exist, and I myself am an agnostic.

I will not go into the specifics of it all, but I believe had certain things not occured a long time ago we would have many more religions today than we currently do. Even for a christian, it would be interesting to go back, change some things, and see how the world would be now. Maybe the world would be worse off, maybe not. It could even possibly answer many of the major questions that afflict both Islam and Christianity. Perhaps even prove your faith (not that the faithful need proof - but you get the idea, in the general world's eyes).

Sadly, the realm of space travel is elusive as it ever was. There are many interesting ''what if's'' books that cover the possibilities.

Anyway, I will not further de-rail this topic, so will leave it at that.

Once more, should I go back in time, I would give the romans and greeks and even persians 5,000 copies each of the major works of medicine, physics, chemistry, mining, astrology, biology, etc.

I wonder how far forward we would jump.