 Complete the following phrase:  Mincéirs are a nomadic people in Ireland. Many different theories have been put forward to explain the origins of Irelands itinerant population. It has been suggested Travellers are related to Romani due to a similarly itinerant lifestyle, but genetic testing has shown no evidence for a recent ancestral component between Irish Travellers and Romani Travellers. One idea is of their being distantly related to a Celtic group that invaded Ireland. Another theory is of a pre-Gaelic origin, where Travellers are descended from a community that lived in Ireland before the arrival of the Celts. Once Ireland was claimed as Celtic, this group was seen as lower class. There is also a theory that an indigenous, itinerant community of craftsmen are the ancestors of Travellers, and they never settled down like the Celts. Other speculations on their origin are that they were descended from those Irish who were made homeless during the 