Ethnic groups in the United Kingdom

People from various ethnic groups reside in the United Kingdom. Intermittent migration from Northern Europe has been happening for millennia, with other groups such as British Jews also well established. Since World War II, substantial immigration from the New Commonwealth, Europe, and the rest of the world has altered the demography of many cities in the United Kingdom.

Historically, British people were believed to be descended from the varied ethnic stocks that settled there before the 11th century; the pre-Celts, Celts, Romans, Anglo-Saxons, Norse and the Normans. Some recent genetic analysis has suggested that the majority of the traceable ancestors of the modern British population arrived between 15,000 and 7,500 years ago and that the British broadly share a common ancestry with the Basque people, although there is no consensus amongst geneticists.

The first Jews in Britain were brought to England in 1070 by King William the Conqueror, while Roma in Britain have been documented since the 16th century. The UK has a history of small-scale non-European immigration, with Liverpool having the oldest Black British community, dating back to at least the 1730s during the period of the African slave trade, and the oldest Chinese community in Europe, dating to the arrival of Chinese seamen in the 19th century.

...
Wikipedia