The truth about the origin of Ikebana is unidentified. But when the Buddhism reached Japan in the 7th century, it is thought to have come to Japan as part of Buddhist practice. The offering of flowers on the altar in honor of Buddha was part of worship. Ikebana evolved from the Buddhist ritual of offering flowers to the spirits of the dead. The first classical styles of Ikebana started in the middle of the fifteenth century; the first students and teachers of Ikebana were Buddhist priests and members. As time passed, other schools emerged, styles changed, and Ikebana became a custom among the Japanese society.