Genin Andrew said:And for those of us that know, The straight bladed katana definately did exist.
So you are saying that you are one of the ones "that know"?
OK Pinky, I am going to have to hurt you now.
Let me ask you this, did the US Army Rangers that went ashore at Normandy use the same flintlocks that Roger's Rangers used in the French- Indian war? (PS- both the French and the Indians lost.)
Yes there was 200 years difference between the two wars, but you are talking about over 500 years between the abandoning of the double edged, straight bladed sword and the rise of the class we now know as ninja.
Oh yeah, there were people living in Iga 500 years before beggining of what we call the age of wars in Japan. But they can not be called ninja anymore than the guys running around in Bronze age England with pointy objects can be likened to the knights that we know of from after Billy did his number at Hastings.
Oh, and there is a reason why the Japanese went with the new curved model over the older style. It is because THE OLD STYLE SUCKED! They could not get rid of the old style fast enough. Within 50 years you stop seeing references and illustrations of the old style swords on the battlefield and everyone using the newer, curved katana/tachi style. The straight blade was kept only by members of the Imperial court much like the royalty of England is proceeeded by a ceremonial mace even today.
If you are trying to say that someone kept a sword for 500 hundred years before using it, I say you should ask anyone who has owned a bike in Japan and see why they call this place the land of perpetual humidity. Everything rusts. And metal was kind of rare a thousand years ago. Some of the oldest buildings in Japan's first permanent capital at Nara are made without a single metal nail. So, the idea that someone who was so without resources that they could not get a new sword, or melt the old one down into something more usefull could somehow keep a blade intact for a longer time than there have been white men living in your country is just plain silly.
And as for you appeal to the authority of Stephen Hayes, have you read his fifth book from Ohara Publications? In it he clearly states that the idea of the ninja using a straight bladed sword is a myth. It is only in his early books that he says they used one. Why? Well, humans make mistakes. Hayes is human, thus Hayes makes mistakes. So his early works may have said that the ninja used swords based on a misunderstanding on his part from a TV series popular at the time he was living here. Maybe not. The important thing from your standpoint is that he changed his opinion when he got more knowledgeable.
When you get to Japanese sources on the sword, you can not find one that says that the ninja used a straight bladed sword. Hatsumi does not say it, and neither does other sources such as Okuse, Nawa, Nakajima, etc. We have gone over this time and time again. The ninja did not use straight bladed swords. Show me a Japanese source that says they did.