When the topic of gay marriage vs. the Bible comes up, many people mention that in the past, people tried to use the Bible as support for racism, segregation, or whatever other discriminatory things like that. Today, they say the Bible explicitly speaks against homosexuality. What evidence did people use to support the other discriminatory claims?
Some Christian groups, especially in 19th century America, believed that the mark of Cain mentioned in the bible referred to black skin. The Southern Baptists and Mormons, for example, used the curse of Cain as justification for not allowing Black men to be ordained.