People around the world mark transitions through the observation of rituals. In South Africa, many ceremonies are aimed at securing the spiritual well-being of the individual and the community. Until the late 18th century all indigenous groups performed initiation rites to prepare young people for their roles in adult society. The Zulu abandoned these in favour of age-grade regiments in the early 19th century. A number of celebrations associated with the coming of age of young women survive to this day, while the Reed Ceremony, associated with puberty rites among the Swazi, was adopted by the Zulu in the mid-1980s. Among other groups there was a revival of interest in initiation in the course of the 1990s, and young people from urban areas often participate in ceremonies organized by rural chiefs and ritual specialists.