The first same-sex marriages in England and Wales have begun after changes in law giving gay couples the right to marry for the first time.
A homophobic mob reportedly hurled rocks and home-made bombs at a same-sex wedding involving a British Red Cross worker in Port-au-Prince.
The US Supreme Court has ruled married gay couples should be entitled to the same benefits as heterosexual couples.
As the countdown for the first same-sex marriages gets underway, Deputy Prime Minister Nick Clegg, former Green Party leader Caroline Lucas and shadow chancellor Ed Balls have hailed the momentous event.
Ed Miliband has joined Nick Clegg in welcoming the first same-sex marriages, which take place just after midnight tonight.
In a message for Pink News, the Labour leader said it was an "incredibly happy time" for same-sex couples as well as "an incredibly proud time for our country".
The Archbishop of Canterbury has signalled a shift in tone in the Church of England's response to same-sex marriage, which will become law at midnight tonight.
Although the church has been divided over the new law, Justin Welby struck a conciliatory tone in his comments.
"I think the church has reacted by fully accepting that it's the law, and should react on Saturday by continuing to demonstrate in word and action, the love of Christ for every human being."
One of the first same-sex couples to get married in England have told Daybreak their wedding is "a big step forward" and "a great privilege".
Andrew Wale and Neil Allard from Brighton said just getting married was more important to them than being the first gay couple down the aisle.
Trevor Love, the registrar officiating the UK's first official same-sex marriage, has told Daybreak how the wedding is "the most exciting day of my life".
Andrew Wale and Neil Allard are to get married in Brighton Pavilion at midnight.
Deputy Prime Minister Nick Clegg said the legalisation of same-sex marriage was "a great step forward".
"It's a landmark day," he said. "I am so chuffed about this change in the law."
"It's just a simple idea that if two people love each other it doesn't matter that they're the same sex - if they love each other and want to show that commitment towards each other through marriage, they should be able to do so."
Same-sex couples will be able to wed from the stroke of midnight tonight as the new law permitting same-sex marriage comes into force.
As the clock strikes 12, gay couples will be able to wed in the first ever ceremonies in England and Wales.
A number of couples are vying to claim the title of being the first ever to be married in Britain by trying to time it perfectly so their vows are said just seconds after midnight.
The Marriage (Same-Sex Couples) Act came into force in July last year.
Stephen Fry will narrate one of the UK's first same-sex weddings which will be conducted in the form of a musical and broadcast by Channel 4.
Composer Benjamin Till and West End stage star Nathan Taylor are writing the entire ceremony as a musical with all the vows and readings to be sung.
Our Gay Wedding: The Musical will feature set-pieces from family and Fry said there will be appearances from "surprise guest stars and showbiz legends".
The QI quizmaster will introduce the 60-minute programme as well as adding his commentary.
John Hay, commissioning editor for arts, said, "We are proud to be marking a huge milestone for gay rights - a cause that has long been close to Channel 4's heart."
A campaign to get the 80s song It's Raining Men to the top of the charts has flooded social media in response to a Ukip councillor who claimed recent flooding was caused by the legalisation of same-sex marriage.
According to the Independent, the Weather Girls' hit, was chosen by campaigners because: “For decades now, this song has been used as a gay anthem, we thought it fitted all the better based on UKIP's comments regarding storms and floods being caused by LGBT people and Gay marriage."
The Facebook campaign ‘Get it’s raining men to Number 1’ already has 8,400 supporters,
To everyone who campaigned to make this happen: thank you! http://t.co/D02jmfKtmD
Fantastic news that from 29 March next year you will be able to marry the person you love regardless of gender.
Great to hear first same sex marriage ceremony can be held from 29 march 2014. Looking forward to lots of weddings!