The term Aiki-Jiujitsu originated with the Takeda clan, an ancient Japanese samurai family that traces itself back to the imperial family. Aiki-jiujitsu was an advanced level of martial arts taught only to high-ranking members of the Takeda family. In this century, the art was taught to Morihei Uyeshiba, who adapted it to create modern Aikido, a system that has found wide acceptance around the world. While aikido and aiki-jiujitsu deal extensively with weapon training, it's the empty hand aspects that are best known in the west.