1. UK consists of four countries. Their names are England, Walse, Scotland and Northern Ireland.
2. The capital of England is London, the capital of Walse is Cardiff, the capital of Scotland is Edinburgh and the capital of Northern Ireland is Belfast.
3. The official name of the United Kingdom is the United Kingdom of Great Britain and Northern Ireland.
4. The name "United Kingdom" was first used in 1707.
5. People also call the United Kingdom as UK.
6. The largest island of the country is Great Britain.