 The case went to trial in 1981, putting evolution and creationism on opposite sides of another courtroom battle.In court, Segraves argued that teaching the theory of evolution in public schools was "'indoctrination' and 'coercion'" against his and his children's religious beliefs and that it violated their right to religious freedom.The plaintiff also argued that teaching the evolutionary theory in public schools established and supported "the religion of secular humanism," which violates the First Amendment's establishment clause.