Very good, Keith. You are getting the knack of the difference between theory and fact. Trouble is with your example is that the world of swans has, I think, been fully explored. All the histories of WW1 written recently have not been, Well, not by you, me or anyone here at any rate.

Teribums. I think if anyone was to look back through the thread they would see who is doing most of the the abusing. There is also the fact that it was Keith that said that all historians agree etc. It is therefore up to Keith to prove his claim, not for someone to disprove it.