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
Same-sex marriage in Austria its approval, in the hope of allowing same-sex couples to marry sooner than 1 January 2019. On 13 December 2017, another same-sex marriage bill was introduced by NEOS Deputy Nikolaus Scherak. On 31 January 2018, SPÖ deputies withdrew their aforementioned bill and introduced a new one. In September 2018, Justice Minister Josef Moser began preparations to implement the ruling, which would legalise same-sex marriage and open registered partnerships to different-sex couples. On 12 October 2018, the first same-sex marriage was performed and registered in Vienna involving a lesbian couple (one of five plaintiff couples that challenged the same-sex marriage ban