Scotland, in the geographical sense it has retained for nearly a millennium, completed its expansion by the gradual subsumation of the Britons' kingdom of Strathclyde into Alba. In 1034, Duncan I, descended from Irish Ui Neill monastery protectors and appointed to the crown of Strathclyde some years earlier, inherited Alba from his maternal grandfather, Malcolm II. With the exception of Orkney, the Western Isles, Caithness and Sutherland, which had come under the sway of the Norse, Scotland stood unified.
The significance of coal, once Scotland's most important mineral resource, has declined. Oil, however, gained prominence in Scotland's economy during the 1970s, with the growth of North Sea oil extraction companies. Natural gas is also abundant in the North Sea fields. Aberdeen is the centre of the oil industry. Other important industries are textile production (woollens, worsteds, silks, and linens), distilling, and fishing. Textiles, beer, and whisky, which are among Scotland's chief exports, are produced in many towns. Salmon are taken from the Tay and the Dee, and numerous coastal towns and villages are supported by fishing from the North Sea. Only about one quarter of the land is under cultivation (principally in cereals and vegetables), but sheep raising is important in the mountainous regions.
Scotland retains its own unique legal system, based on Roman law, which combines features of both civil law and common law. The terms of union with England specified the retention of separate systems. The barristers being called advocates, and the judges of the high court for civil cases are also the judges for the high court for criminal cases. Scots Law differs from England's common law system.
Scotland retains its own distinct sense of nationhood. Academic research consistently shows that people in Scotland feel Scottish, whilst not necessarily feeling the need to see that translated into the establishment of a fully-independent Scottish nation-state.
Historically the politics of Scotland have reflected those of the UK as a whole, although with some differences. For example, besides the main UK-wide political parties (Labour, Conservatives and the Liberal Democrats) a number of Scottish-specific parties operate. These include the Scottish National Party (SNP), the Scottish Socialist Party (SSP) and the Scottish Green Party. These parties became more of a force in Scottish politics after the establishment of the Scottish Parliament in 1998.
In 1547, after the death of Henry VIII, forces under the English regent Thomas Somerset were victorious at the battle of Pinkie Cleugh, the climax of the Rough Wooing and followed up by occupying Edinburgh. However it was to no avail since Queen Mary was in France and Marie de Guise called on French reinforcements who helped stiffen resistance to the English occupation. By 1550, after a change of regent in England, the English withdrew from Scotland completely.
Most Scottish industry and commerce is concentrated in a few large cities on the waterways of the central lowlands. Edinburgh, on the Firth of Forth, is a cultural centre, the capital of Scotland, and one of the the top financial centres in Europe. Glasgow, one of the largest cities in the UK, lies on the Clyde; it is Scotland's leading seaport and was once a centre of shipbuilding and it supports numerous light industries. Although heavy industry has declined, the high-technology Silicon Glen corridor has developed between Glasgow and Edinburgh. Tourism is also very important.
A number of other Christian denominations exist in Scotland, amongst them Roman Catholicism, which made a comeback through immigration from Ireland, after Protestants brutally repressed it during the 16th to late 18th centuries. It has now become the largest faith after The Kirk. As well as The Kirk we find various other Protestant churches, including the Scottish Episcopal Church, which forms a full part of the Anglican Communion, and the Free Church of Scotland, a Presbyterian off-shoot from the established Church of Scotland.
Humans have lived in Scotland since the end of the last glaciation, around 10,000 years ago. Of the stone, bronze, and iron age civilisations which occupied the country, many artefacts, but few examples of writing, remain. Thus the written History of Scotland largely begins with the arrival of the Roman Empire in Britain. From a classical historical viewpoint Scotland seemed a peripheral country, slow to gain advances filtering out from the Mediterranean fount of civilisation, but as knowledge of the past increases it seems remarkable how early and advanced some developments have been, and how important the seaways were to Scottish history. The country's lengthy struggle with England, its more powerful neighbour to the south, repeatedly forced it to rely on trade, cultural and often strategic ties with a number of European powers. Following the Act of Union and the subsequent Scottish Enlightenment and Industrial Revolution, Scotland became one of the commercial, intellectual and industrial powerhouses of Europe. Its industrial decline following World War II was particularly acute, but in recent decades the country has enjoyed something of a cultural and economic renaissance, fuelled in part by a resurgent financial services sector, the proceeds of North Sea oil and gas, and latterly a devolved parliament.
From 1885 to 1918 the Liberal party almost totally dominated Scottish politics. Only in the khaki election of 1900 did the Conservative Party -- known as the Unionists in Scotland -- win a majority of seats.