62.1 percent of Irish voters say yes to change the constitution and, thus define marriage as a union regardless of the sex. In this way, Ireland becomes the first country to approve same-sex marriage through a popular national vote; other countries have legalized the practice with changes in legislatures and courts. Youth mobilization, thanks to social media, and personal stories and experiences have been the successful tools to promote the ‘yes’ campaign, leading to a social revolution in Ireland. A firm majority has declined Catholic Church’s calls to reject gay marriage. Now, abortion seems to be the next social policy fight.