The decision capped a remarkably quick turnaround in public and judicial acceptance of same-sex marraige. In the past 18 months, court rulings struck down marriage bans in rapid succession -- nearly 60 separate decisions in more than half the states. Today's ruling overturned a decision from the Sixth Circuit Court of Appeals in Cincinnati, which said states had legitimate reasons for maintaining the traditional definition of marriage. The appeals court also said it would be better "to allow change through the customary political processes" instead of the courts. Public opinion has shifted dramatically in recent years. The first Gallup poll on the subject showed only 27 percent approval for same-sex marriage in 1996. Gallup's most recent poll, taken last month, showed 60 percent approval. read more: http://www.nbcnews.com/news/us-news/same-sex-marraige-legal-nationwide-supreme-court-rules-n375551