In the 4th Century BC the Greeks and Phoenicians and Carthaginians traded in Britain for Cornish tin. Islands near the west coast of Europe were called the Cassiterides or Tin Islands.
Julius Caesar went to Britain in 55 BC and the next year in 54BC. Rome controlled the island from 43BC to 410AD and called it Britannia. Before this period was the Iron Age in Britain where the tribes of Britain were connected with the continent of Europe as well in trade. Three legions of Romans were stationed in Britain in 125AD.
Caesar's second invasion consisted of a larger force the than first one. They met Celtic tribes who had to pay him tribute and give the Romans hostages in order to have peace.
The southern part of Britain had two kingdoms. The first one was called Catuvellaune made up of the descendents of Tasciouvanus. The second one was called Atrebates, made up of the descendants of Commius.
This leads me to think that there could be quite a mixture of dna in Britain, though 80% of Western Europe is made up of R1b1b2 alleles. In fact, most of Ireland is made up of R1b1b2. This particular line is fairly new, dating back only 5,000 to 8,000 years ago. It may have existed before the last ice age, or it could be even younger. People living here could be from the Celtic two tribes, the Romans, Phoenicians, Greeks or Cartheneginians. Anglo Saxons or Normans.
"The name Celt originated with the ancient Greeks, who called the barbarian peoples of central Europe Keltoi.
3,4000 years ago the Celtics inhabited land found in southern Germany, Austria, Slovakia, Czech Republic and Hungary. Today they are found in Scotland, Wales, Ireland, Cornwall, Cumbria and Brittany.
We find the Celtic people about 2,7000 years ago in southern Europe of Indo-Aryan stock. Their blood type is found to be O.
They had their own religious beliefs. Their rites were in honor of Lugh. After the Celts came the Druids, then the Romans and finally the Celtic Christian Church.
There were the lowland Celts found along the Danube River in Germany and the True Celts who followed the Rhine River. This second group was in the Balkans and Carpathians in the 6th Century BC. They crossed Europe fighting. They loved to fight. They sacked Rome and the Delphi. They then went into the British Isles and inhabited it. They were classier than the lowland Celts in that they buried their dead.
"The Celts were a very clean people, using soap long before the Romans did. The Celtic men and women of Britain sometimes wore swirling blue tattoos or paintings on their bodies. All Celts played lyres and harps, loved song, music, and recitation of legends and epic adventures".