[AoshiShinomori]

I have one last interesting post to make, but that requires some pre-requisite knowledge about measuring units of sword lengths, which I paste here:

Measuring unit for sword lengths:

The shaku is an archaic Japanese unit of length, approximately equal to the foot. As with other measurements, it was originally derived from nature: the average length between nodes on bamboo. Since 1891, the shaku has been defined to equal 10/33 meter (approximately 30.3 cm, or 11.93 inches), or 3.3 shaku to the meter. A single shaku is divided into 10 sun.

Another unit of length also called the shaku was used only for measuring cloth. This shaku measured 125/330 meter (approximately 37.9 cm, or 14.9 inches). When a distinction needed to be made between the two shaku, the cloth unit was referred to as kujirajaku (whale shaku, as the rulers for measuring cloth were made from whale whisker) and the other shaku was referred to as kanejaku (metal shaku).

While Japanese law required official use of these units be discontinued on March 31, 1966, the shaku is still used in some fields in Japan, such as traditional carpentry.