WASHINGTON—Following the Supreme Court’s landmark decision making same-sex marriage legal nationwide, sources confirmed Friday that only 47,000 social justice milestones need to be reached before the U.S. achieves full equality. “This is a watershed moment for civil rights that finally brings the dream of living in an equitable society one tiny fraction of a step closer to reality,” said civil rights lawyer Helene Najjar, adding that the country could now turn its attention to closing the income gap, ending racial discrimination in law enforcement, and providing equal educational opportunities for all children, among tens of thousands of other issues.