The United Kingdom of Great Britain and Northern Ireland (which is usually shortened to just the UK or the United Kingdom) is a political union made of up of four countries, England, Scotland, Wales and Northern Ireland. England, Scotland, and Wales share the island of Great Britain, which lies just off the northwest coast of continental Europe. The fourth country, Northern Ireland, is a portion of another island, which is split between Northern Ireland and the Republic of Ireland, an independent country, in the south. The UK also has overseas territories such as Bermuda and Gibraltar.
The union of Great Britain and Northern Island is the latest that has occurred over the last 300 years. Originally Scotland and England were two entirely separate countries with their own monarchs and political systems, and Wales fell under the control of England and was known as a principality.
Over the years, various acts of the union have taken place that has brought England, Scotland, Wales and Ireland together and Ireland was later to gain independence in 1922 leaving the current split we see today.
The British Empire was once a world force, with the territory as far-flung as India, Canada, South America, and Africa. Although colonial days are far gone and there has been a steady decline in the British Empire and the UK’s influence around the world, the UK is still a major political and economic force, with membership in the G8 and an economy that is the fifth-largest in the world and second largest in Europe. The UK’s colonial history also means that it has been subject to a multitude of international influences and influxes of people, helping to create the multi-cultural society that exists today.