So, it's the HuffPo and therefore probably crap 'journalism' but I found this article vaguely diverting.
For those not wanting to click through, it's an article about a recently translated training manual for Samurai from the 19th century. Key bits that I found interesting were part of the 'Rules for Samurai' that admonish students 'Do not complete' and a what seems to be a general emphasis on not really employing the techniques taught -secrecy and school mystique seeming to be of paramont concern. I guess it's good to know that this kind of **** isn't a new development in MA.
1844 was in the 19th century. Unless we have lost one somewhere between then and now.