Geological History 1700 Ireland’s oldest rocks
Palaeolithic Period (kya) 12.5 Alice & Gwendoline Cave, County Clare
Mesolithic Period (BC) 7530 Earliest known human burial 7000 Mount Sandel, County Londonderry, Ulster 7000 Killuragh Cave, County Limerick 6800 Lough Boora, County Offaly, Leinster 6000 Newferry, Co, Londonderry, Ulster 4570 Rockmarshall, County Lough, Leinster 4560 Sutton, County Dublin, Leinster 4495 Ferriter’s Cove, County Kerry, Munster 4200 Poulnabrone, County Clare, Munster 4000 Dalkey Island, County Dublin, Munster 4000 Sramore, County Antrim, Ulster
Neolithic Period (BC) 4000 Rathcroghan, County Roscommon, Connacht 3800 Ballynagilly, County Tyrone, Ulster 3950 Lyles Hill, County Antrim, Ulster 3500 Céide Fields, County Mayo, Connacht 3500 Lough Gur, County Limerick, Munster 3400 Hill of Tara, County Meath, Leinster 3300 Browne’s Hill, County Carlow, Leinster 3200 Knowth, County Meath, Leinster 3200 Newgrange, County Meath, Leinster 3000 Creevykeel, County Sligo, Connacht 2500 Carrowcrom, County Mayo, Connacht 2500 Dowth, County Meath, Leinster
Copper Age (BC) 2400 Ross Island, County Kerry, Munster 2400-1800 Bell Beaker culture
Bronze Age (BC) 2100 Beltany, County Donegal, Ulster 2000 Cashel Man, County Laois, Leinster 1200 Rathgall, County Wicklow, Leinster 1150 Ballinderry, County Westmeath, Leinster 1100 Drombeg, County Cork, Munster 850 Dowris Phase 700 Navan Fort, County Armagh, Ulster
Early Iron Age (BC) 500 Knockaulin, County Kildare, Ulster 450-00-100 La Tène period 390-370 Black Pig’s Dyke, Ulster-Connacht 330-320 Pytheas circumnavigated Britain 148–147 Corlea trackway, Leinster 100 Dorsey earthwork, Ulster
Late Iron Age (AD) 1st century: Arretine ware , Leinster 4th century: Ogham script
Notes
Throughout AntiquityComplete the traditional BC/AD convention is replaced by xx-00-yyMore Information .
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