I love how much details you shared about katana. I've been always fascinated by these Japanese swords but I have never learned anything about them. Now, you told me about the history, their use and how they are made and I feel like WOW, 15000 layers? Incredible!
So many details! There is such a long history of using katana and so many interesting details. Your post is very educational.
Thank you for sharing and have a nice day!