The United Kingdom, also known as Britain or the United Kingdom of Great Britain and Northern Ireland, is a European region with a long and storied history. The first modern humans (Homo sapiens) arrived in the region during the Ice Age (about 35,000 to 10,000 years ago), when the sea levels were lower and Britain was connected to the European mainland. It is these people who built the ancient megalithic monuments of Stonehenge and Avebury.
Between 1,500 and 500 BCE, Celtic tribes migrated from Central Europe and France to Britain and mixed with the indigenous inhabitants, creating a new culture slightly distinct from the Continental Celtic one. This came to be known as the Bronze Age.
The Romans controlled most of present-day England and Wales, and founded a large number of cities that still exist today. London, York, St Albans, Bath, Exeter, Lincoln, Leicester, Worcester, Gloucester, Chichester, Winchester, Colchester, Manchester, Chester, and Lancaster were all Roman towns, as were all the cities with names now ending in -chester, -cester or -caster, which derive from the Latin word castrum, meaning "fortification.”
History of the United Kingdom: The Anglo-Saxons
In the 5 century, the Romans progressively abandoned Britannia, as their Empire was falling apart and legions were needed to protect Rome.
With the Romans vacated, the Celtic tribes started warring with each other again, and one of the local chieftains had the (not so smart) idea to request help from some of the Germanic tribes from the North of present-day Germany and South of Denmark. These were the Angles, Saxons and Jutes, who arrived in the 5th and 6th centuries.
When the fighting ceased, the Germanic tribes did not, as expected by the Celts, return to their homeland. In fact, they felt strong enough to seize the whole of the country for themselves, which they ultimately did, pushing back all the Celtic tribes to Wales and Cornwall, and founding their respective kingdoms of Kent (the Jutes), Essex, Sussex and Wessex (the Saxons), and further northeast, the kingdoms of Anglia, Mercia and Northumbria (the Angles). These 7 kingdoms, which ruled over the United Kingdom from about 500 to 850 AD, were later known as the Anglo-Saxon heptarchy.
History of the United Kingdom: The Vikings
In the latter half of the 9 century, the Norse people from Scandinavia began to invade Europe, with the Swedes putting down roots in Eastern Europe and the Danes creating problems throughout Western Europe, as far as North Africa.
Towards the dawn of the 10 century, the Danes invaded the Northeast of England, from Northumerland to East Anglia, and founded a new kingdom known as the Danelaw. Another group of Danes managed to take Paris, and obtain a grant of land from the King of France in 911. This area became the Duchy of Normandy, and its inhabitants were the Normans (from 'North Men' or 'Norsemen', another term for 'Viking').
