Katana

Historically, katana (刀) were one of the traditionally made Japanese swords (日本刀 nihonto) that were worn by the samurai class of feudal Japan, also commonly referred to as a "samurai sword".

Modern versions of the katana are sometimes made using non-traditional materials and methods.

Katana were used by samurai in practicing several martial arts and modern martial artists still use a variety of katana. Martial arts in which training with katana is used include battōjutsu, iaidō, kenjutsu, shinkendo, kendo.