Who were the Celts? The Celts were a group of peoples that occupied lands stretching from the British Isles to Gallatia. The Celts had many dealings with other cultures that bordered the lands occupied by these peoples, and even though there is no written record of the Celts stemming from their own documents, we can piece together a fair picture of them from archeological evidence as well as historical accounts from other cultures. The first historical recorded encounter of a people displaying the cultural traits associated with the Celts comes from northern Italy around 400 BC, when a previously unkown...