To make a great samurai sword the requirements are good raw materials, appropriate equipment, and a skilled smith. The forging process is called “tanren” in Japanese. Just as a master sword maker crafts the blade with heat and…

To make a great samurai sword the requirements are good raw materials, appropriate equipment, and a skilled smith. The forging process is called “tanren” in Japanese. Just as a master sword maker crafts the blade with heat and…