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Niten Ichi-ryu, a renowned samurai school, was established in Kumamoto, Japan. Founded by the legendary swordsman Miyamoto Musashi, the school emphasized the use of both the katana (long sword) and wakizashi (short sword) simultaneously. Niten Ichi-ryu's teachings focused on practical combat techniques, including the famous "two-sword style" that Musashi himself mastered. The school's legacy continues to influence modern martial arts practices, particularly in the realm of kenjutsu (swordsmanship).