Same-sex marriage 2010 upon promulgation by the Argentine President. Argentina thus became the first country in Latin America, the second in the Americas, and the tenth in the world to legalize same-sex marriage. Australia became the second nation in Oceania to legalise same-sex marriage when the Australian Parliament passed a bill on 7 December 2017. The bill received royal assent on 8 December, and took effect on 9 December 2017. The law removed the ban on same-sex marriage which previously existed and followed a voluntary postal survey held from 12 September to 7 November 2017, which returned a 61.6% "Yes" vote for
Recognition of same-sex unions in El Salvador the proposed constitutional amendment banning same-sex marriage unlawful, because it was "fast-trecked though the Assembly and voted on urgently just days left in the session." On 8 January 2018, the Inter-American Court of Human Rights (IACHR) ruled that the American Convention on Human Rights mandates and requires the recognition of same-sex marriage. The ruling was fully binding on Costa Rica and set binding precedent in other Latin American and Caribbean countries including El Salvador. In the wake of this ruling, LGBT advocacy groups in El Salvador have urged the Government to abide by the ruling, and legalise same-sex marriage. According