Ancient Ireland


Ireland is an island country located in the North Atlantic, bounded by the North Channel, the Irish Sea, and St. George's Channel. It is known as Eire in the Gaelic language, which comes from the old Irish Eriu, the name of a daughter of the mother goddess Ernmas of the Tuatha De Danaan, the mystical pre-Celtic race of Ireland.

More about: Ancient Ireland


  • c. 7000 BCE - 6500 BCE
    First human beings appear in Ireland.
  • c. 4200 BCE - c. 2200 BCE
    Construction of the Great Megaliths of Ireland.
  • c. 4000 BCE
    Transition in Ireland from hunter-gatherer to agrarian society.
  • c. 3200 BCE
    The megalithic monument Newgrange is built in County Meath, Ireland.
  • c. 2700 BCE
    The Giant's Ring Henge constructed in Ireland.
  • c. 2500 BCE
    Knowledge of metal working evident in Ireland.
  • c. 2500 BCE
    Immigration of the Beaker People to Ireland.
  • c. 2200 BCE
    The wheel in use in Ireland.
  • c. 500 BCE - c. 300 BCE
    The arrival of the Celts in Ireland.
  • c. 227 CE - c. 266 CE
    Life of Cormac MacArt, High King of Ireland, known as The Lawgiver in creating the Brehon Codes.
  • c. 350 CE - c. 950 CE
    Estimated use of the Ogham in Ireland and southwestern England.
  • c. 400 CE - c. 450 CE
    Christian Missionaries arrive in Ireland, literacy spreads.
  • c. 432 CE
    St. Patrick comes to Ireland, lights fire announcing Christianity on Hill of Slane.
  • 795 CE
    First recorded Viking invasion of Ireland.
  • 795 CE - 1014 CE
    The Viking Age in Ireland.
  • 1014 CE
    The Battle of Clontarf between Brian Boru, High King of Ireland, and the Vikings with Irish allies.