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Only four MPs voted against the move.
The move brings Austria into line with many other European nations.
Victorian MP Tim Wilson proposed to his partner, Ryan Bolger, during Question Time in Parliament
Officials declare the results of a nationwide postal survey after years of fierce public and political debate
Same-sex couples married in Germany for the first time on Sunday, with several dozen couples tying the knot at civil registry offices that opened
Sydney holds Australia's biggest-ever LGBT marriage equality rally, while the Conservatives' Malcolm Turnbull comes out in favour ahead of postal plebicite.
Australia's High Court has rejected two legal challenges to the centre-right coalition government's proposed postal vote on whether to legalise same-sex marriage.
Australia's High Court has begun hearing a legal challenge against the government's plan to hold a postal vote on whether to legalise same-sex marriage
It has turned into a complex political and legal issue that has divided public opinion, but the Australian government says it is confident it has
More than a dozen European countries have legalised it since the turn of the century
The EU's smallest nation is the 24th country in the world to legalise same-sex marriage
germany is the 14th in Europe and 23rd in the world to legalise same-sex weddings
Questions marks over Czech Republic, Ireland, Finland, the UK and France.
The parliament voted by 393 votes in favour of same-sex unions to 226 against.
SPD leader Martin Schulz says his party will push for a vote in parliament this week, before the start of the summer recess.
It comes after other parties warned that an agreement on gay marriage would be a condition of any coalition deal with Merkel’s Christian Democrats (CDU).
A heterosexual couple in Britain have lost a court bid aimed at allowing them to enter into a civil partnership.
Taiwan's parliament has relaxed rules against same-sex marriage, with opponents and supporters demonstrating outside parliament.
Rome has hosted its first ever same-sex civil union.
It was possibly the most romantic moment of the Rio Olympics so far.