The constitution of the United Kingdom is uncodified, being made up of constitutional conventions, statutes and other elements such as EU law. This system of government, known as the Westminster system, has been adopted by other countries, especially those that were formerly parts of the British Empire.
The United Kingdom is also responsible for several dependencies, which fall into two categories: the Crown dependencies, in the immediate vicinity of the UK, and British Overseas Territories, which originated as colonies of the British Empire.