Before 1975 local government in Scotland was organised on the county system. In reforms that took effect from 1975, the Conservative government of Edward Heath introduced a system of two-tier local government in Scotland, divided between large Regional Councils and smaller District Councils. The only exceptions to this were the three Island Councils, Western Isles, Shetland and Orkney which had the combined powers of Regions and Districts. In 1995 the Conservative government of John Major decided to abolish this system and merge their powers into new Unitary Authorities, roughly equivalent to the old counties.
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.
HM Queen Elizabeth II, head of state of the United Kingdom, is descended from King James VI of Scotland, the first Scottish monarch to also be King of England (James I of England from 1603). While some controversy has simmered amongst the Scottish public over her official title since her coronation (many believe that, being the first Queen Elizabeth of Scotland, she should use the style "Elizabeth I"), the courts of Scotland have confirmed "Elizabeth II" as her official title. She has said that in the future monarchs will follow the international ordinal tradition that, where a monarch reigns in a number of non-independent territories (or independent territories that agree to share a monarch) that each have a differing number of previous monarchs of the same name, the highest ordinal used in any of the territories is the one used across all.
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 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.
The Parliament is elected with a Proportional Representation electoral system, namely, the Additional Members System. This is unlike Westminster which is still elected by the First Past the Post method. It is elected every four years and contains 129 members (referred to as MSPs).
During the 1920s and 1930s, as ship-building and other industrial pursuits came to be more profitable outwith the British Isles, Glasgow and Clydebank slowly decayed and fell into economic depression.