Uchigatana
An uchigatana (打刀) is a type of Japanese sword worn by the samurai class of feudal Japan. The uchigatana was the descendant of the tachi.
History
The production of swords in Japan is divided into specific time periods:
Jokoto (ancient swords, until around 900 CE)
Koto (old swords from around 900–1596 CE)
Shinto (new swords 1596–1780 CE)
Shinshinto (new new swords 1781–1876 CE)
Gendaito (modern swords 1876–1945 CE)
Shinsakuto (newly made swords 1953–present)
From the Heian to the Muromachi Period, the primary battlefield sword was the tachi. Its long blade and sharp edge made it ideal for use on horseback. During the fifteenth century, the uchigatana came into use, and during the Muromachi Period (1336 to 1573) use of the uchigatana became widespread.
The word uchigatana can be found in literary works as early as the Kamakura Period, with uchi meaning "to strike" and gatana (katana) meaning "sword", so that uchigatana means "sword to strike with". The uchigatana was originally used only by individuals of low status or rank, such as the ashigaru.