I'm a bit confused about sword edges. I went to a Highland Games event and there was a chap there who seemed quite knowledgeable on the way Celts fought back in the day (basically sword and spiked shield). He mentioned that most of the swords used by the Celts didn't have a fine edge as such because they would be too easy to damage. Is this true? I realise that Katana's and similar swords would have a sharpened cutting edge, but it seems (according to him) the majority have more axe-like edges rather than knife-like edges. Is he barking up the wrong tree?