A Japanese sword is one of several types of traditionally made swords from Japan. Bronze swords were made as early as the Yayoi period, though most people generally refer to the curved blades made from the Heian period (794–1185) to the present day when speaking of "Japanese swords". There are many types of Japanese swords that differ by size, shape, field of application and method of manufacture. Some of the more commonly known types of Japanese swords are the uchigatana, tachi, ōdachi, wakizashi, and tantō.
A polearm or pole weapon is a close combat weapon in which the main fighting part of the weapon is fitted to the end of a long shaft, typically of wood, extending the user's effective range and striking power. Polearms are predominantly melee weapons, with a subclass of spear-like designs fit for thrusting and/or throwing. Because many polearms were adapted from agricultural implements or other fairly abundant tools, and contained relatively little metal, they were cheap to make and readily available. When belligerents in warfare had a poorer class who could not pay for dedicated military weapons, they would often appropriate tools as cheap weapons. The cost of training was comparatively low, since these conscripted farmers had spent most of their lives using these "weapons" in the fields. This made polearms the favoured weapon of peasant levies and peasant rebellions the world over.
A sword is an edged, bladed weapon intended for manual cutting or thrusting. Its blade, longer than a knife or dagger, is attached to a hilt and can be straight or curved. A thrusting sword tends to have a straighter blade with a pointed tip. A slashing sword is more likely to be curved and to have a sharpened cutting edge on one or both sides of the blade. Many swords are designed for both thrusting and slashing. The precise definition of a sword varies by historical epoch and geographic region.
A tachi is a type of sabre-like traditionally made Japanese sword (nihonto) worn by the samurai class of feudal Japan. Tachi and uchigatana generally differ in length, degree of curvature, and how they were worn when sheathed, the latter depending on the location of the mei (銘), or signature, on the tang. The tachi style of swords preceded the development of the katana, which was not mentioned by name until near the end of the twelfth century. Tachi were the mainstream Japanese swords of the Kotō period between 900 and 1596. Even after the Muromachi period (1336–1573), when katana became the mainstream, tachi were often worn by high-ranking samurai.
The jian is a double-edged straight sword used during the last 2,500 years in China. The first Chinese sources that mention the jian date to the 7th century BCE, during the Spring and Autumn period; one of the earliest specimens being the Sword of Goujian. Historical one-handed versions have blades varying from 45 to 80 centimeters in length. The weight of an average sword of 70-centimetre (28-inch) blade-length would be in a range of approximately 700 to 900 grams. There are also larger two-handed versions used for training by many styles of Chinese martial arts.
Dao are single-edged Chinese swords, primarily used for slashing and chopping. They can be straight or curved. The most common form is also known as the Chinese sabre, although those with wider blades are sometimes referred to as Chinese broadswords. In China, the dao is considered one of the four traditional weapons, along with the gun, qiang (spear), and the jian, called in this group "The General of Weapons".
A tantō is one of the traditionally made Japanese swords that were worn by the samurai class of feudal Japan. The tantō dates to the Heian period, when it was mainly used as a weapon but evolved in design over the years to become more ornate. Tantō were used in traditional martial arts. The term has seen a resurgence in the West since the 1980s as a point style of modern tactical knives, designed for piercing or stabbing.
The ōdachi (大太刀) or nodachi is a type of traditionally made Japanese sword used by the samurai class of feudal Japan. The Chinese equivalent of this type of sword in terms of weight and length is the miaodao or the earlier zhanmadao, and the Western battlefield equivalent is the Zweihänder.
The iaitō (居合刀) is a modern metal practice sword, without a cutting edge, used primarily for practicing iaido, a form of Japanese swordsmanship.
The zhanmadao was a single-bladed anti-cavalry Chinese sword. It originated during the Han dynasty and was especially common in Song China (960–1279).
Since the 1970s, there has been a revival of traditional or reconstructed methods of swordsmanship based on the Korean sword in the Republic of Korea, supplementing the practice of Kumdo. There are historical sources on which such reconstructions are based, dating to the 17th and 18th centuries, notably the Muyejebo of 1610, its 1759 revision Muyeshinbo, supplemented with 12 additional fighting methods by Prince Sado who originated the term Sip Pal Ki, and the renewed revision of 1790, Muyedobotongji.
Japanese sword mountings are the various housings and associated fittings that hold the blade of a Japanese sword when it is being worn or stored. Koshirae (拵え) refers to the ornate mountings of a Japanese sword used when the sword blade is being worn by its owner, whereas the shirasaya is a plain undecorated wooden mounting composed of a saya and tsuka that the sword blade is stored in when not being used.
The shashka or shasqua is a kind of North Caucasian sabre; a single-edged, single-handed, and guardless backsword. The comparatively subtle curve of a shashka blade puts the weapon midway between a typically curved sabre and a straight sword, effective for both cutting and thrusting.
Commissioned in 1790 by King Jeongjo, the Muyedobotongji expanded on the eighteen weapons systems identified in the Muyeshinbo of 1758.
Swords made of iron appear from the Early Iron Age, but do not become widespread before the 8th century BC.
A katana is a Japanese sword characterized by a curved, single-edged blade with a circular or squared guard and long grip to accommodate two hands. Developed later than the tachi, it was used by samurai in feudal Japan and worn with the edge facing upward. Since the Muromachi period, many old tachi were cut from the root and shortened, and the blade at the root was crushed and converted into a katana. The specific term for katana in Japan is uchigatana (打刀) and the term katana (刀) often refers to single-edged swords from around the world.
The guntō was a ceremonial sword produced for the Imperial Japanese army and navy after the introduction of conscription in 1872.
The Muyesinbo is a Korean martial arts manual published in 1759. The book is a revision of the older Muyejebo, made during the reign of King Youngjo (1724–1776). It adds twelve disciplines or "skills" of both armed and unarmed fighting by Prince Sado to the original six which were descbribed in the Muyejebo. No copies of the Muyesinbo have survived, but its contents can easily be determined by tracing back and comparing the Muyejebo with the later Muyedobotongji.
Jedok geom or Admiral sword or Commander sword is a sword-skill originating from China and used during the Japanese invasions of Korea during the 16th century.
This is the glossary of Japanese swords, including major terms the casual reader might find useful in understanding articles on Japanese swords. Within definitions, words set in boldface are defined elsewhere in the glossary.
