Tachi

A tachi (太刀) was a type of traditionally made Japanese sword (nihonto) worn by the samurai class of feudal Japan. Tachi and katana generally differ in length, degree of curvature, and how they were worn when sheathed, the latter depending on the location of the mei, 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 are known to have been made in the Kotō period, ranging from 900 to 1596.

For other uses, see Tachi (disambiguation).
A back view of a samurai in armor carrying a tachi sword, on his back is a sashimono, holding a spear and a severed head.

History and description
Comparison between the tangs (nakago) of a katana (left) and tachi (right). The signature (mei) on the tachi tang was inscribed in such a way that it would always be on the side of the tang facing outward when either sword was worn.

The production of swords in Japan is divided into specific time periods:

  • Jōkotō (ancient swords, until around 900)
  • Kotō (old swords from around 900–1596)
  • Shintō (new swords 1596–1780)
  • Shinshintō (new new swords 1781–1876)
  • Gendaitō (modern swords 1876–1945)[1]
  • Shinsakutō (newly made swords 1953–present)[2]

Authentic tachi were forged during the Kotō period, before 1596.[3] The tachi preceded the katana; the latter was not mentioned by name to indicate a blade distinct from a tachi until near the end of the twelfth century.[4] With a few exceptions, katana and tachi can be distinguished from each other if signed by the location of the signature (mei) on the tang. In general the signature should be carved into the side of the tang that would face outward when the sword was worn on the wielder's left waist. Since a tachi was worn cutting edge down, and the katana was worn cutting edge up the mei would be in opposite locations on the tang of both types of swords.[5]

An authentic tachi that was manufactured in the correct time period had an average cutting edge length (nagasa) of 70–80 cm (​27 9⁄16–​31 1⁄2 in) and compared to a katana was generally lighter in proportion to its length, had a greater taper from hilt to point, was more curved and had a smaller point area.[6]

Unlike the traditional manner of wearing the katana, the tachi was worn hung from the belt with the cutting-edge down,[7] and was most effective when used by cavalry.[8] Deviations from the average length of tachi have the prefixes ko- for "short" and ō- for "great, large" attached. For instance, tachi that were shōtō and closer in size to a wakizashi were called kodachi. The longest tachi (considered a 15th-century ōdachi) in existence is more than 3.7 metres (12 ft) in total length with a 2.2 metres (7 ft 3 in) blade, but believed to be ceremonial. In the late 1500s and early 1600s many old surviving tachi blades were converted into katana by having their original tangs cut (o-suriage), which meant the signatures were removed from the swords.[9]

For a sword to be worn in "tachi style" it needed to be mounted in a tachi koshirae. The tachi koshirae had two hangers (ashi) which allowed the sword to be worn in a horizontal position with the cutting edge down.[10] A sword not mounted in a tachi koshirae could be worn tachi style by use of a koshiate, a leather device which would allow any sword to be worn in the tachi style.[11]

Use
Tachi forged by Bizen Osafune Sukesada, 1515. Scabbard in aogai-nashiji lacquer, gold decorations.

According to author Karl F. Friday, before the 13th century there are no written references or drawings etc. that show swords of any kind were actually used while on horseback.[12]

The uchigatana was derived from the tachi and was the predecessor to the katana as the battlesword of feudal Japan's bushi (warrior class), and as it evolved into the later design, the tachi and the uchigatana were often differentiated from each other only by how they were worn, the fittings for the blades, and the location of the signature (mei).

As a result of the first Mongol invasions of Japan in 1274, tachi started to be made thicker and wider.[13]

In later Japanese feudal history, during the Sengoku and Edo periods, certain high-ranking warriors of what became the ruling class would wear their sword tachi-style (edge-downward), rather than with the scabbard thrust through the belt with the edge upward.[14]

With the rising of statism in Shōwa Japan, the Imperial Japanese Army and the Imperial Japanese Navy implemented swords called shin and kaiguntō, which were worn tachi style (cutting edge down).[15]

  • Close up view of an antique tachi hilt. One of the "ashi" (sword hanger) can be seen.
  • Tachi by Bizen Osafune Sukesada and koshirae, on display at the British museum.
  • Tachi "kissaki" (blade tip), Bizen school, signed "Tachimei, Bizen no Kuni Osafune Yoshigake"; Nambokucho era (14th century).
  • Tachi forged in 1997 by Matsuda Tsuguyasu, koshirae made in 1999 by Takeyama. Copy of Heian era sword (11th century). Galley Dutta, Geneva.
  • Various types of "koshiate", a device used to carry a sword in the tachi style (cutting edge down).
  • Line drawing showing the correct method of wearing a tachi while in armour.

See also

References
  1. Clive Sinclaire (1 November 2004). Samurai: The Weapons and Spirit of the Japanese Warrior. Lyons Press. pp. 40–58. ISBN 978-1-59228-720-8.
  2. トム岸田 (24 September 2004). 靖国刀. Kodansha International. p. 42. ISBN 978-4-7700-2754-2.
  3. Nagayama, Kōkan (1997). The Connoisseur's Book of Japanese Swords. Kodansha International. ISBN 978-4-7700-2071-0.CS1 maint: ref=harv (link), page 48
  4. Turnbull, Stephen (8 February 2011). Katana: The Samurai Sword. Osprey Publishing. p. 22. ISBN 978-1-84908-658-5.
  5. 土子, 民夫; 三品, 謙次 (May 2002). 日本刀21世紀への挑戦. Kodansha International. ISBN 978-4-7700-2854-9.CS1 maint: ref=harv (link), page 30
  6. 寒山, 佐藤 (1983). The Japanese Sword. Kodansha International. ISBN 978-0-87011-562-2.CS1 maint: ref=harv (link), page 15
  7. Nippon-tô: the Japanese sword, Author Inami Hakusui, Publisher Cosmo, 1948, Original from the University of Michigan, Digitized May 27, 2009 P.160
  8. "A distinguished collection of arms and armor on permanent display", Issue 4 of Bulletin, Los Angeles County Museum of Natural History History Division, Ward Ritchie Press, 1969. Original from the University of Virginia, Digitized Aug 13, 2010 P.120
  9. The connoisseur's book of Japanese swords, Author Kōkan Nagayama, Edition illustrated, Publisher Kodansha International, 1998, ISBN 4-7700-2071-6, ISBN 978-4-7700-2071-0 P.48
  10. Art of the samurai: Japanese arms and armor, 1156-1868, Authors Morihiro Ogawa, Kazutoshi Harada, Publisher Metropolitan Museum of Art, 2009, ISBN 1-58839-345-3, ISBN 978-1-58839-345-6 P.193
  11. Pauley's Guide - A Dictionary of Japanese Martial Arts and Culture, Author Daniel C. Pauley, Publisher Samantha Pauley, 2009, ISBN 0-615-23356-2, ISBN 978-0-615-23356-7 P.91
  12. P.84
  13. The Japanese Sword, Kanzan Satō, Kodansha International, 1983, ISBN 0-87011-562-6, ISBN 978-0-87011-562-2 P.54
  14. Kapp, Leon; Hiroko Kapp; Yoshindo Yoshihara (1987). The Craft of the Japanese Sword. Japan: Kodansha International. p. 168. ISBN 978-0-87011-798-5.
  15. The Japanese Army 1931-42, Volume 1 of The Japanese Army, 1931-45, Author Philip S. Jowett, Publisher Osprey Publishing, 2002, ISBN 1-84176-353-5, ISBN 978-1-84176-353-8 P.41
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