Thirty-one couples, including Dublin man Stephen Dawson and his partner Dennis Liddelow, got married in the five days before the federal government overturned and annulled all the gay marriages carried out in that time.
Many supporters of the Bill travelled to Canberra to witness the outcome of the parliamentary process.
Prime Minister Malcolm Turnbull urged lawmakers to approve the marriage bill by Christmas.
Many Australians took to Twitter to post a video of their TV screens as the bill was passed - and various videos of LGBT+ Australians reacting to the news cropped up on the platform. "Every Australian had their say, and they said it is fair, get on with it!"
Members of the LGBT community fought for the equality of marriage in Australia for decades. This means couples who don't want to be referred as "husband and wife" may be able to take their partner as they lawful wedded spouse. Queues of people lined up to watch the debate from the public gallery, with some dancing and cheering.
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"These amendments are important and I stress they are not against same-sex marriage, they are simply in favor of the rights of religious organizations to keep doing what they're doing", Abbott said.
First, Austria's Supreme Court has changed the definition of marriage to make same-sex marriage now legal.
"It's a historic day for Australia today and I think the celebrations around the country when we finally ... achieve marriage equality are going to be enormous", Greens party senator Janet Rice said.
From heartfelt to bizarrely offensive, the debates to allow same-sex marriage couples to marry became emotionally charged ahead of the final vote on same-sex marriage on December 7. More than 12 million people participated.
"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".