It is possible that nagamaki were first produced during the
Heian period (794 to 1185) but there are no known examples dating from before the mid
Kamakura period (1192–1333). The nagamaki is believed to have been developed from the . The , with its long blade, was sometimes too long to be used with a standard length hilt. Therefore, a strong cord would sometimes be wrapped around the sword from the center of the blade to the , and the user would hold the sword by that part of the cord. The sword used in this way was called . It is believed that this usage evolved into the nagamaki, in which the hilt was lengthened during the manufacturing process. In the
Sengoku period, as the battlefield changed to a tactic where foot soldiers called fought on a large scale in dense formations with and , , which were difficult to use in dense formations, were replaced by nagamaki, and heavy and long were often replaced by . During the Sengoku period the nagamaki reached its peak of usage. It was generally used as a weapon for low-ranking soldiers who fought on foot. The historical book mentions that nagamaki were lent to low-ranking soldiers who could not handle the well. In the
Edo period (1603–1867), the hilts of nagamaki were often cut off and made into or . This practice of cutting off the hilt of a or or or nagamaki and remaking it into a shorter or due to changes in tactics is called and was common in Japan at the time. In Japan there is a saying about swords: "No sword made by modifying a nagamaki or a is dull in cutting" (長巻(薙刀)直しに鈍刀なし). The meaning of this saying is that nagamaki and are equipment for actual combat, not works of art or offerings to the , and that the sharpness and durability of swords made from their modifications have been proven on the battlefield. ==Description==