England is a constituent country of the United Kingdom located on the island of Great Britain in the north-west of Europe. It is home of the English language currently spoken by perhaps a billion people worldwide, and was the seat of an empire that spanned the globe.
England is the largest of the UK's constituent countries, both in terms of area and population. It is also home to the UK's capital and parliament, making this area politically and economically important to the UK as a whole. England's government is technically a Constitutional Monarchy, although it exhibits many aspects of socialism.
The prehistoric inhabitants of the island of Britain were largely Celtic. From AD 43, the Romans invaded Britain and took control of the southern half of the islands, where they founded the fort of "Londinium", which later became London.