One good thing about history. You can always find a reason for treating people like dog-dirt if you go back far enough.
Seriously? The 1980s?
Personally I still think we owe the Normans one. And as for the Danes, bloody hell!
I wish people on both sides would just get over it.
I freely admit that I used to strongly dislike Wigan Athletic, but that was because of the constant threat to chuck us out of the DW. These days, now there's clearly no chance of that ever happening, I'm happy to let them get on with their stuff while we get on with ours.