Seido Karate began in 1976 under the leadership of Kaicho (Grandmaster) Tadashi Nakamura. Nakamura was a black belt in Kyokushin Karate before establishing Seido. The principles behind Seido are respect, love and obedience.
The Japanese word seido means "sincere way." (sei: sincerity, truth; do: way, path). It comes from the Chuyo (Confucius's book "The Middle Path", or "The Doctrine of the Mean"), which states,