This morning, in his much anticipated speech on the European Union, David Cameron announced that he would seek to renegotiate the terms of the UK’s membership of the EU and then offer an in/out referendum to the British public. It was the sort of ‘announcement’ only possible in politics – something we’ve more or less known was coming for months, the details of which were released the night before.

On Monday David Cameron and Alex Salmond signed an agreement allowing the Scottish government to hold a referendum on independence. The Scotland independence referendum will be the latest in an ever growing list of referendums held in the UK that began in earnest with the Blair government.