c. 7000 BC Excavation at a settlement at Mount Sandel, Co. Derry showed that people lived there during the Mesolithic (Middle Stone Age). They were the earliest known inhabitants of Ireland so far and they survived by foraging for food.
c. 4200 BC During the Neolithic (New Stone Age) in Ireland, people developed the skills of farming.
c. 2000 BC Metalworking began in Ireland about this time. Copper was mined here at first and later mixed with imported tin to make bronze articles. This period is called the Bronze Age.
c. 600 BC The technology of iron working began in Ireland about this time. Celtic culture was developing.
500 AD Christianity had been firmly established by St. Patrick and others.
600 Many early Christian monasteries had been founded.
697 Cáin Adomnáin - an early Irish law for the protection of women
795 First Viking raid on Ireland.
821 Vikings carry off a large number of women from Howth.
841 First Viking longphort in Ireland.
1014 Brian Boru killed at the Battle of Clontarf.
1111 Synod of Rathbreasail. Irish dioceses reorganised.
1169 Arrival in Ireland of Strongbow and the Normans.
c. 1200 Stone castles being built.
1315-8 Bruce invasion.
1348 'Black death' in Ireland.
1366 Statutes of Kilkenny.
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