Is it the Good Friday Agreement or Belfast Agreement?
The 1998 Good Friday Agreement brought an end to three decades of violence and paved the way for the establishment of new power-sharing institutions.
The accord was meant to signal a new era of partnership in a deeply divided society.
Yet even the name of the agreement has proved mildly divisive, with nationalists and the international media preferring to call it the Good Friday Agreement, while unionist politicians tend refer to it as the Belfast Agreement.
Sometimes in the interest of diplomacy it is called the Belfast/Good Friday Agreement.
25 years on we asked some of those involved in the negotiations that led to 1998 agreement what they prefer to call it and why...