The "Pro12" was adopted to reflect that it now includes teams from outside the Celtic nations.

"Campaigning for a formal association of Celtic nations to take place once two or more of them have achieved self-government."

It was an intriguing day and one that will be remembered by all three of the Celtic nations for differing reasons.

Each year, a Celtic nation is chosen as honored guest.

Brittany and its people are counted as one of the six Celtic nations.

It is one of the six predecessors to what are now known as the six Celtic nations.

Music typically drew on folk traditions within the Celtic nations.

But each of the Celtic nations has expressed fears that doing so could harm their independence in the game.

Brittany is considered as one of the six Celtic nations.

This is a gathering of musicians and dancers from the six Celtic nations.