Australia's House of Representatives overnight passed its same-sex marriage bill in a massive landslide vote, with just four Members of Parliament out of 150 voting no.
The marriage equality bill won massive support in the House of Representatives where almost all members of the ruling Liberal-National Coalition joined by Labor and the Greens voting in favor of the bill.
"What a day for equality, for love and respect", Prime Minister Malcolm Turnbull said after the decision was delivered.
He said "injustices are happening this day", noting the case of Catholic Archbishop of Hobart Julian Porteous and a Canberra women who was sacked from her work after a No post on Facebook. "... It is time for more marriages".
Additionally, the passing of the same-sex marriage law will be a strategic political win for Turnbull, who has been strongly opposed by his predecessor Tony Abbott, a staunch supporter of conventional marriage.
"This Parliament, when we passed the marriage equality law, is not a gift from us to LGBTIQ Australians, equality is never a gift to be given".
The Senate passed the same legislation last week 43 votes to 12.
The LNP has sold us out and I will go to The Australian Conservative Party.
Among them was Christine Forster, the gay sister of Tony Abbott, the former Australian Prime Minister who has always been seen as the face of the "no" campaign.
In June, the United Nations Human Rights Committee said Australia's transgender "forced divorce" laws were in violation of global human rights law. "Equality isn't in our legal birthright of every Australian and this equality is long overdue", said Mr Shorten. Austria on Tuesday also approved same-sex marriage.
Australia joins about two dozen countries around the world, including Germany, which have legalized same-sex marriage.
Australia's first same-sex weddings will not take place until at least January, however, because of a longstanding requirement for all Australian couples to provide a full month's notice of their intention to get married.