Logo used by the Yes Campaign.
A referendum was held in 1979 under a Labour government which stipulated that a Scottish Assembly would come into being if the referendum had been supported by 50% of votes cast plus a controversial rule whereby at least 40% of the electorate had to vote in favour. Although 51.6% voted in favour, this was only 32.9% of the electorate so the Assembly was not brought into being. Shortly afterwards, the predominantly anti-devolution-led Conservative Party won the United Kingdom general election, 1979.
Logo used by the No Campaign.
The Campaign for a Scottish Assembly was formed afterwards to continue the campaign. They brought together a committee of "prominent Scots" who drafted the document A Claim of Right for Scotland. The Claim was published in 1988 and signed by most Scottish politicians, local councils, trade unions and churches.
It was agreed to form a Scottish Constitutional Convention made up of all existing MPs and councillors. This was done despite the opposition of the national government of the time of John Major. Because the Labour Party had a clear majority within the convention the Scottish National Party withdrew.
The Labour Party included the establishment of a Scottish Parliament in its manifesto for the United Kingdom general election, 1997, which they won with a landslide majority of 179.