You have forgotten to add that in the South-West of England there is the county of Cornwall. Although not Cornish myself, there is a reason why on the map Cornwall is green like Wales. Prior to the Roman invasion and occupation 43AD onwards, one name for Britain was Albionum. Some say it was known as the "White Island" because of the cliffs of Kent and other South coast counties are white chalk. However, Cornwall was never occupied by the Romans and kept its Celtic roots. "Kernow" is the name used by those who still speak Cornish which, like Welsh, is a Brythonic language, the old Celtic language spoken in various forms all over what we call "The British Isles." It includes Gaelic languages like those spoken in Ireland and Scotland (the Gaels) and Celtic languages of Wales, Brittany (France) Cornwall and the now extinct Celtic language of "Cumbric" spoken only in the area of Cumbria (formerly Cumberland) which borders Scotland in the far north-west of England. After the Roman invasion these areas still spoke their own variations of Celtic but with the inability of Rome to "lock-down" these areas, the language was the centre of their culture. It was the Romans who pushed those who didn't want "Romanisation" out of their sphere of influence and that is why the Celtic peripheral regions kept their language. A Roman from the first or second century AD would recognise a modern day map of Britain as a map of Roman Britain. Three main areas, England (minus Cornwall) Wales and Scotland. They built Hadrian's Wall (essentially the Scottish border) and with forts the encirclement of the western Celts (Wales). The rest is England. After the fall of Rome gradual waves of peoples from the western edge of Europe looking for a new homeland, similar to their own came from northern Germany and the surrounding areas. These were, as you state, the Jutes from Jutland (now modern day Denmark) Saxons and Angles from northern Germany escaping the Franks who were pushing north from what is now France. They all settled along the east and north-east coast. As you say they all became one group but don't forget, the best way to ensure peace and prosperity was to inter-marriage between the Romano Celts (Roman colonists who stayed in Britain and married Celts) and the "newcomers. The Romano Celts didn't disappear, they saw advantages in becoming a more harmonious group and as a people moved across Angland (England). Christianity was the chosen religion of Rome and the newcomers all converted to this religion over a 200 year period. The Saxon Kings fought each other as the population grew but now there was anew problem. The invasions came from the east again but this time it was the "pagan" Vikings from Norway. They eventually took over eastern England and stayed until the early 11th century befor being driven out by the regenerated English. By now the language was mostly a Germanic/Scandinavian language in England. When the Normans invaded in 1066 they brought French as the language of the King and nobility and Latin for church and legal matters. I'm sure you recognise the legal language of U.S. courts, habeus corpus etc. Again inter-marriage with Saxon female nobility (almost all male Saxon nobility were executed) brought about Lords and Ladies to-be who if they wanted their staff and soldiers, maids and builders to understand them, spoke the language of the "commoners." In other words speak English. The name given to the English spoken up to 1100 AD is Early English. From 1100-1500 Middle English. From 1200 onwards French became less important as King John lost Norman lands in France and English nobles stayed closer to home. During this period the language became really mixed with some words being formed to make a new word. Gentleman is half French (gentle) and half German (man) i.e. English! From 1500-1800 it is known as Early Modern English and from 1800-now Late Modern English. To understand how English is a Celtic-Germanic-Scandinavian-Latin based language try explaining to any Italian or Spanish speaking individual that a "blank" piece of paper is not necessarily "white." (Weiss in German) A blank piece of paper is one with nothing written or drawn on it (blanc in French-blanco in Spanish-bianco in Italian is "white") A blank piece of paper can be blue red green or white, any colour, in English. A blank piece of blue paper? A white sheet of paper that isn't blank? It's easier to explain the rules of Cricket!