Ikebana room decoration and commenced in a rudimentary way to consider natural beauty in floral arrangement. At this time "ikebana" was known as "rikka". This same age conceived another form called "nageirebana". "Rikka" and "nageirebana" are the two branches into which "ikebana" has been divided. Popularity of the two styles vacillated between these two for centuries. In the beginning, "rikka" was stiff, formal, and more decorative while "nageirebana" was simpler and more natural. Although "nageirebana" began to come into favour in the Higashiyama period, "rikka" was still preferred, and "nageirebana" did not truly gain popularity until the Momoyama period, about a
Ikebana principles, but there are in Tokyo and Kyoto many masters of "ikebana" who teach the simpler forms of "Ko-ryū", and "Ko-Shin-ryū" of the Genroku and Tenmei eras. The oldest international organization, Ikebana International, was founded in 1956. Her Imperial Highness Princess Takamado is the honourary president. Followers and practitioners of "kadō", from pupil to teacher, are known as "kadōka" (華道家). A "kadō" teacher is called . The term comes from "sen" or "saki" (before) and "sei" (life) – i.e. one who has preceded you. Noted Japanese who practiced it include Junichi Kakizaki, Mokichi Okada, and Yuki Tsuji. Tsuji was at