Britain has legalized gay marriage after Queen Elizabeth gave her royal assent to a bill approved earlier by lawmakers.
Lawmakers in parliament's House of Commons cheered Wednesday as they were told the controversial bill had become law.
The first same-sex weddings are expected to take place in mid-2014.
The law allows gay couples to wed in civil and religious ceremonies, but the Church of England and the Church in Wales will be barred from offering same-sex weddings.
The bill was introduced earlier this year to strong objections from the Conservative Party of British Prime Minister David Cameron.