Since Richard Schechner coined the term "environmental theatre" in the 1960s, environmental theatre had become an anti-realist staging force in the theatre community. The development of Taiwan's environmental theatre between 1986 and 1990 can be divided into three related streams. First is experimentation with performance art or conceptual art as exemplified by Luo-ho Concept's street performances, with Wang Mo-lin, a theatre activist, as the main promoter of this stream. Second is the paratheatrical activities that used Grotowskian actor training as its starting point. The main advocates were Chen Wei-cheng and Liu Jing-min, two disciples of Grotowski; Liu Jing-min created You Theatre and became the trendsetter of this stream. Third is the experimentation that used Schechner's theory and the Bread and Puppet Theatre's practices as a foundation. This stream began with the experimentations of Mingder Chung, a theatre professor of the National Institute of the Arts, which resulted in the founding of the Environmental Theatre 425, a theatre which performed big puppet plays in the parks and streets of Taiwan. After 1989 these three streams blended and developed into the wave of political theatre. On the one hand, groups marched down the street for social change and on the other, they identified themselves with indigenous rituals. folklore performances, and popular entertainment--these vernacular forms of environmental theatre--in the continuous search for an authentic contemporary Taiwanese theatre.