Since 1948 substantial immigration from Africa, the Caribbean and South Asia has been a legacy of ties forged by the British Empire. Migration from new EU member states in Central and Eastern Europe since 2004 has resulted in growth in these population groups, although some of this migration has been temporary. Since the 1990s, there has been substantial diversification of the immigrant population, with migrants to the UK coming from a much wider range of countries than previous waves, which tended to involve larger numbers of migrants coming from a relatively small number of countries.
Major scientific discoveries from the 18th century include hydrogen by Henry Cavendish; from the 20th century penicillin by Alexander Fleming, and the structure of DNA, by Francis Crick and others. Famous British engineers and inventors of the Industrial Revolution include James Watt, George Stephenson, Richard Arkwright, Robert Stephenson and Isambard Kingdom Brunel. Other major engineering projects and applications by people from the UK include the steam locomotive, developed by Richard Trevithick and Andrew Vivian; from the 19th century the electric motor by Michael Faraday, the first computer designed by Charles Babbage, the first commercial electrical telegraph by William Fothergill Cooke and Charles Wheatstone, the incandescent light bulb by Joseph Swan, and the first practical telephone, patented by Alexander Graham Bell; and in the 20th century the world's first working television system by John Logie Baird and others, the jet engine by Frank Whittle, the basis of the modern computer by Alan Turing, and the World Wide Web by Tim Berners-Lee.
More InfoThe UK does not have a codified constitution and constitutional matters are not among the powers devolved to Scotland, Wales or Northern Ireland. Under the doctrine of parliamentary sovereignty, the UK Parliament could, in theory, therefore, abolish the Scottish Parliament, Senedd or Northern Ireland Assembly. Indeed, in 1972, the UK Parliament unilaterally prorogued the Parliament of Northern Ireland, setting a precedent relevant to contemporary devolved institutions. In practice, it would be politically difficult for the UK Parliament to abolish devolution to the Scottish Parliament and the Senedd, given the political entrenchment created by referendum decisions. The political constraints placed upon the UK Parliament's power to interfere with devolution in Northern Ireland are even greater than in relation to Scotland and Wales, given that devolution in Northern Ireland rests upon an international agreement with the Government of Ireland.
More InfoThe Conservative Party, the Labour Party and the Liberal Democrats (formerly as the Liberal Party) have, in modern times, been considered the UK's three major political parties, representing the British traditions of conservatism, socialism and liberalism, respectively, though the Scottish National Party has been the third-largest party by number of seats won, ahead of the Liberal Democrats, in all three elections that have taken place since the 2014 Scottish independence referendum. Most of the remaining seats were won by parties that contest elections only in one part of the UK: Plaid Cymru (Wales only); and the Democratic Unionist Party and Sinn Féin (Northern Ireland only). In accordance with party policy, no elected Sinn Féin members of parliament have ever attended the House of Commons to speak on behalf of their constituents because of the requirement to take an oath of allegiance to the monarch.
More InfoMajor scientific discoveries from the 18th century include hydrogen by Henry Cavendish; from the 20th century penicillin by Alexander Fleming, and the structure of DNA, by Francis Crick and others. Famous British engineers and inventors of the Industrial Revolution include James Watt, George Stephenson, Richard Arkwright, Robert Stephenson and Isambard Kingdom Brunel. Other major engineering projects and applications by people from the UK include the steam locomotive, developed by Richard Trevithick and Andrew Vivian; from the 19th century the electric motor by Michael Faraday, the first computer designed by Charles Babbage, the first commercial electrical telegraph by William Fothergill Cooke and Charles Wheatstone, the incandescent light bulb by Joseph Swan, and the first practical telephone, patented by Alexander Graham Bell; and in the 20th century the world's first working television system by John Logie Baird and others, the jet engine by Frank Whittle, the basis of the modern computer by Alan Turing, and the World Wide Web by Tim Berners-Lee.
More InfoThe organisation of local government in England is complex, with the distribution of functions varying according to local arrangements. The upper-tier subdivisions of England are the nine regions, now used primarily for statistical purposes. One region, Greater London, has had a directly elected assembly and mayor since 2000 following popular support for the proposal in a referendum. It was intended that other regions would also be given their own elected regional assemblies, but a proposed assembly in the North East region was rejected by a referendum in 2004. Since 2011, ten combined authorities have been established in England. Eight of these have elected mayors, the first elections for which took place on 4 May 2017. Below the regional tier, some parts of England have county councils and district councils and others have unitary authorities, while London consists of 32 London boroughs and the City of London. Councillors are elected by the first-past-the-post system in single-member wards or by the multi-member plurality system in multi-member wards.
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