2011 United Kingdom Alternative Vote referendum
The United Kingdom Alternative Vote referendum, also known as the UK-wide referendum on the Parliamentary voting system was held on Thursday 5 May 2011 (the same date as local elections in many areas) in the United Kingdom (UK) to choose the method of electing MPs at subsequent general elections. It occurred as a provision of the Conservative–Liberal Democrat coalition agreement drawn up in 2010 (after a general election that had resulted in the first hung parliament since February 1974) and also indirectly in the aftermath of the 2009 expenses scandal. It operated under the provisions of the Parliamentary Voting System and Constituencies Act 2011 and was the first national referendum to be held under provisions laid out in the Political Parties, Elections and Referendums Act 2000.