Same-sex marriage in Argentina 16% supported civil unions or other forms of legal recognition. Same-sex marriage in Argentina Same-sex marriage in Argentina has been legal since July 22, 2010. Argentina was the first country in Latin America, the second in the Americas, and the second in the Southern Hemisphere to allow same-sex marriage nationwide. It was the tenth country worldwide to allow same-sex marriage. In the first decade of the 21st century, civil unions ( or "unión convivencial") were made legal in four jurisdictions in Argentina: the Autonomous City of Buenos Aires (2002), the province of Río Negro (2003), the city of Villa Carlos
Same-sex marriage Constans issued a law in the Theodosian Code ("C. Th." 9.7.3) prohibiting same-sex marriage in Rome and ordering execution for those so married. Historians variously trace the beginning of the modern movement in support of same-sex marriage to anywhere from around the 1970s to the 1990s. In 1989, Denmark became the first country to recognize a legal relationship for same-sex couples, establishing registered partnerships, which gave those in same-sex relationships "most rights of married heterosexuals, but not the right to adopt or obtain joint custody of a child". In 2001, the Netherlands became the first country to establish same-sex marriage