Marriage in the United Kingdom has different laws and procedures in the different countries. For details see:
Marriage in England and Wales Marriage in Northern Ireland Marriage in Scotland
History A survey in the United Kingdom in 2011 showed that people who are married are more likely to be happy than those who are not married.ONS well-being report reveals UK's happiness ratings retrieved 25 July 2012
See also Civil partnership in the United Kingdom Polygamy in the United Kingdom Same-sex marriage in the United Kingdom
References