Another country at the forefront of this movement is Denmark, where a form of gay marriage has been legal since 1989. Prior to the law's enactment, most of the Danish clergy opposed it. In 1995, after seeing the positive effects of gay marriage, most of the clergy shifted their opinions to support it. While many people still oppose gay marriage on religious grounds, others point out that the Bible also condoned slavery. They see gay marriage as a civil rights issue.