The United Kingdom is so called because England , Wales, Scotland and Northern Ireland have nnited to form the United Kingdom of Great Britain.
50 American states have united to form a single...
The Kingdom of England (including Wales), the Kingdom of Scotland, and Ireland. Even though South Ireland is no longer part of the United Kingdom, the UK still retains sovereignty over Northern...
A kingdom is a sovereign state instituting a monarchy, or having a monarch as its head. As the UK has a monarch as the Head of State ie Qeen Elizabeth 2nd then it is refered to as a Kingdom.
Because it originally 'United' the Kingdoms of England, Scotland and Ireland. United Kingdom is a term used for England, Northern Ireland, Scotland and Wales.