Did the zodiacal system exist in Iron-Age Britain? British Iron-Age coin showing back-to-back crescent moons While the Picts, famous for their symbol stones, were fighting each other, and then the Romans, in Scotland, British Celts were fighting each other, and then the Romans, in the rest of Britain. Nearly all these people, and their culture, were imported from mainland Europe in the preceding few millennia - we now know this from genetic studies. This means the British and Scottish Celts represent the tail-end of the Indo-European migration from the Pontic Steppe. Several millennia before that, the indigenous hunter-gather population was almost totally replaced by Anatolian farmers. So we have the sequence: European hunter-gatherers, Anatolian farmers, Indo-Europeans, in the British Isles. Most people in the UK now have DNA which is roughly an equal mix of these three lineages. However, we now suspect all these different cultures used practically the same zodiacal syst