This lays out the timeline of the shift in popular opinion for gay marriage: https://news.gallup.com/poll/117328/marriage.aspx https://news.gallup.com/poll/117

This lays out the timeline of the shift in popular opinion for gay marriage: https://news.gallup.com/poll/117328/marriage.aspx https://news.gallup.com/poll/117328/marriage.aspx Here's polling on interracial marriage: https://news.gallup.com/poll/163697/approve-marriage-blacks-whites.aspx https://news.gallup.com/poll/163697/approve-marriage-blacks-... Interracial marriage became legal nationwide in 1967 with Loving v Virginia, but wasn't approved of by the majority of Americans until 1997. Edit: I only add this to support the the comment replied to.