In response to the emergence of Plaid Cymru and the Scottish National Party (SNP) Harold Wilson's Labour Government set up the Royal Commission on the Constitution (the Kilbrandon Commission) to investigate the UK's constitutional arrangements in 1969. Its eventual recommendations formed the basis of the 1974 White Paper "Democracy and Devolution: proposals for Scotland and Wales"., which proposed the creation of a Welsh Assembly. However, voters rejected the proposals by a majority of four to one in a referendum held in 1979.