Following the book's publication in 1989, the FTE embarked on a lengthy campaign to get the book into use in schools across the United States. Previous creationist efforts to dilute or overturn the teaching of evolutionary theory had relied largely on a "top-down" approach of pro-creationist legislators passing laws to regulate science education in schools. However, these had repeatedly failed to survive court challenges. The FTE took a "bottom-up" approach instead, mobilizing local Christian conservative groups to push school boards and individual teachers to adopt the book and also to get themselves elected to school boards and local educational committees.