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 largest political party operating in Scotland is the Labour Party. They replaced the Liberals as Scotland's main political force in the early twentieth century and traditionally represent the interests of workers and trade-unionists. They currently operate as the senior partners in a coalition Scottish Executive.
Islam is the largest non-Christian religion in Scotland, although its numbers remain very small.
From 1652 to 1658, Scotland formed an integral part of the Puritan-governed Commonwealth, under English control but gaining equal trading rights. Upon its collapse, nominal independence returned with the restoration of Charles II to the throne. Scotland regained its parliament, but the English Navigation Acts prevented the Scots from sharing its commercial success to escape impoverishment. A formal frontier between the two countries was re-established, with customs duties which, while they protected Scottish cloth industries from cheap English imports, also denied access to English markets for Scottish cattle on the hoof or Scottish linens (Braudel 1984 p 370).
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 1603, the Scottish King James VI inherited the throne of England, and became James I of England. James moved to London and only returned to Scotland once. In 1707, the Scottish and English Parliaments signed the Treaty of Union, which was deeply unpopular in Scotland, as it had been negotiating from a position of economic weakness and suffering from English tariffs. Implementing the treaty involved dissolving both the English and the Scottish Parliaments, and transferring all their powers to a new Parliament sitting in London which then became the Parliament of the United Kingdom. A customs and monetary union also took place.
In 1468 the last great acquisition of Scottish territory occurred when James III married Margaret of Denmark, receiving the Orkney Islands and the Shetland Islands in payment of her dowry.
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.
Scotland's territorial extent is generally that established by the 1237 Treaty of York between Scotland and England and the 1266 Treaty of Perth between Scotland and Norway. Exceptions include the Isle of Mann, which is now a crown dependency outside the United Kingdom, Orkney and Shetland, which are Scottish rather than Danish, and Berwick-upon-Tweed, which was defined as subject to the laws of England by the 1746 Wales and Berwick Act.
The modern system of branch banking (in which banks maintain a nationwide system of offices rather than one or two central offices) originated in Scotland. Only strong political pressure during the 19th century prevented the resultant strong banking system from taking over banking in England. However, although Scottish banks proved unwelcome in England at the time, their business model became widely copied, firstly in England and later in the rest of the world.