the Liberal Democrats as their coalition partner. In Northern Ireland, the Good Friday Agreement has led to a reduction in conflict, though the traditional parties who gained power in the 1980s, such as the Ulster Unionist Party, have been replaced as the dominant powers by the likes of Sinn Féin and the Democratic Unionist Party. The elections of the 1990s and 2000s (decade) also saw a proliferation of smaller parties, with more parties standing at the 2005 general election than ever before. Voter turnout also fell during this period, with the 2001 election seeing a post-World War II low of 59.4%. 1955–1974 The elections of this period took place in the context of the decolonialisation of the British Empire and the UK's declining status as a Great Power. It also saw the UK enter the European Union and some periods of high unemployment. The early years of the period saw Conservative consolidation of power, before Harold Wilson's two general election wins in 1964 and 1966. There was then a series of close fought elections, including two in 1974. This period was also the one in which the Liberal Party was at its all-time low, never having more than 14 seats (though it had been in 1951 when they'd had their lowest ever percentage of the vote). The Ulster Unionists dominated in Northern Ireland, whilst the Scottish National Party and Plaid Cymru became major players for the first time, the SNP gaining 11 seats in 1974. This period also saw the demise of the autonomous Unionist Party in Scotland and the National Liberal Party, which both merged with the Conservative Party. 1929–1951 This era saw massive social change in the UK, going through the Great Depression of the 1930s, resulting in a National Government; the Coalition Government of the Second World War led by Winston Churchill; and the socialist Labour government of Clement Attlee. This was also the period of the Liberal Party's major collapse and the completion of Labour's rise to power. The 1929 election resulted in the Labour Party having the greatest number of seats and they formed a Government under Ramsay MacDonald with the support of the Liberals. As a result of the growing economic crisis, McDonald formed a National Government in 1931 with the support of the Conservatives and Liberals, which was not however backed by the majority of Labour MPs. This was followed by a general