The arrival of the Celts in Britain around 600BC heralded the start of the iron age. The Celts spread over the whole of Britain and brought with them the language from which present day Welsh is derived.
The Celtic tribe present in north east Wales was the Deciangli.
Remains of Iron Age hill forts can be seen around Dinas Bran Castle and on the top of Moel y Gaer in Llantysilio (artist’s impression shown above).
