This is sure to stir up some 'you don't belong here' anti-white crap. In the fairy tale book it is claimed whites were on the coast and dark and curly haired (implying black) were inland because that is what Tacitus wrote.
here is a translation of Tacitus https://www.philipharland.com/Blog/2022/07/britons-tacitus-late-first-century-ce/
[Original people and their physical characteristics in relation to the climate or environment]
Be this as it may, what humans inhabited Britannia originally, whether indigenous or later-comers, is a question which has never received attention, as one would expect for a barbarian people. The physical features of the people present many varieties, from which inferences can be drawn. The red hair and the large limbs of the inhabitants of Caledonia proclaim their Germanic origin. The swarthy faces of the Silurians, the generally curly quality of their hair, and the position of Spain opposite their shores attest the passage of Iberians in the old days and the occupation by these districts. Those peoples, again, who adjoin Gaul are also like Gauls [Roman equivalent for the Celts], whether because the influence of heredity persists or because when two lands converge till they face each other the climatic condition stamps a certain physical form on the human body.
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