On ya, 'straya!
This is the best tl;dr I could make, original reduced by 90%. (I'm a bot)
Australia, which changed the law in 2004 to say that marriage is only between a man and a woman, now joins 24 countries which recognise same-sex marriage.
In a bruising three-month campaign, opponents of marriage equality claimed same-sex marriage would have far-reaching negative consequences for gender education and claimed it would harm religious freedom and freedom of speech.
The yes camp's Equality Campaign combined with moderate Liberals, Labor, the Greens, unions and the progressive campaign organisation Get Up to argue that same-sex marriage was a matter of equality and fairness.