Sage of the Six Paths Hagoromo "Rikudou Sennin

The Sage of the Six Paths (六道仙人, Rikudō Sennin) was the legendary figure who founded the arts of ninjutsu and created the ninja world. He defeated the Ten-Tails and sealed it within his own body, thus becoming the first jinchūriki. (Source: Narutopedia)