How would you change history?

[Narukami]

I wouldn't change anything, because I don't think that would be right, but I would have a now-a-days famous tunic-color-debate with some soldiers and officers (not to mention to ask about crests, scutum emblems, etc)

Here Here!

You can't change the past (Back to the Future not withstanding) but you sure could learn a lot, even in a single hour.

However...

If we were going to change something -- how about preventing the destruction of the library at Alexandria? Imagine what we could learn if those books had survived.

Narukami