There is no documentation of ancient Irish dance that I know of.
The Celts.
I know all about Irish Dancing because i do it and i researched it for a topic at school. Irish Dancing obviosily originated from Ireland and started when the Celts came. That was about 300 AD
Celts, Tuatha de Danann, FirbolgCeltsCelts.
Celts
There could be several answers to that, but the one you are probably looking for is the Celts.
Contrary to popular belief, the first people to come to Ireland are thought to have come from Spain by boat and were not Celts.
Celts have not died out. Descendants of the Celts can be found living in Cornwall, Scotland, Ireland, Wales and Brittany.
Celts lived in many parts of Ireland. There is evidence of them in many places. Archaeologists have found artefacts from the Celtic era in different parts of Ireland.
Celts lived in many parts of Ireland. There is evidence of them in many places. Archaeologists have found artefacts from the Celtic era in different parts of Ireland.
Celts
Ireland, where the Celts were.
The Celts.