I'm not sure that getting Jesus, Buddha and Mohammed together would make much difference. They only ever had the same basic message anyway: "We're all in this together, so we'd better all get on with one another." So I can't see that having them say it together, rather than individually, would change the way fundamentalists have interpreted it.

Well, I don't think there are any Bhuddist fundamentalists, but you know what I mean.

My three journeys back in time would be:
*Make sure the plot to assassinate Hitler was better equipped and informed;
*Petition the League of Nations not to let Britain force warring tribes to live under one rule, in the artificially constructed Iraq;
*Buy some shares in Microsoft.