More than one thousand republicans are gathering in Dublin today to celebrate the 100th anniversary of Sinn Fein.
Party president Gerry Adams will deliver a keynote address at the Céad Bliain event in the City West Hotel at 9pm.
He is expected to speak about the party's campaign for Irish re-unification in the wake of IRA decommissioning.
Sinn Fein claims a direct link to the party that was founded in 1905 by Arthur Griffin.
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Many of those original party members took part in the 1916 Easter Rising but then went on to join Fianna Fail or Cumann na nGaedhael after the foundation of the State.