Welcome to Emerald Archives
Emerald Archives presents Ireland’s story one reference year at a time, from the deep prehistoric past to the modern era. Each article explores the evidence, people, places and developments associated with a particular year and places them within their wider historical setting. The collection brings together archaeology, politics, society, religion, culture, conflict, everyday life and changing landscapes in one continuously expanding timeline. New articles appear here as the archive grows. You can also explore the full Irish History Timeline, search the archive directly, or use Explore to move through the collection by period and subject.
31440–31431 BCE
Doneraile’s Earliest Trace
At c. 31,436 BCE, Ireland cannot be described through annual events or human history, but through uncertain Late Pleistocene environmental evidence. Derryvree, County Fermanagh, preserves freshwater sediments between glacial tills, indicating episodically ice-free, cold, treeless wetlands with tundra plants during Marine Isotope Stage 3. Castlepook Cave near Doneraile contains remains of mammoth, reindeer, horse, bear, hyaena and other cold-stage fauna, although collections span long periods. A marked reindeer bone may indicate early human butchery, but sustained occupation is unproven. Dynamic ice, changing coasts and later erosion shaped intermittently habitable landscapes, while preventing reconstruction of societies, politics, settlement, or exact chronology.
Derryvree’s Tundra Insects
Derryvree is important because its sedimentary sequence records change rather than a timeless image of an Ice Age Ireland. A lower till was laid down by ice; afterwards, liquid water collected and laid down silts rich in organic remains; then a later ice advance covered the deposit with another till. The deposit therefore demonstrates that this part of Fermanagh was ice-free, at least locally, during a cold interval between episodes of glaciation. It does not show that all Ireland was free of ice at once, nor does it identify the exact outline of coasts, glaciers or sea routes in 31,437 BCE.
Derryvree’s Moss and Mammoths
Around 31,438 BCE, Ireland had no historical calendar, communities or written record; evidence instead describes a changing Late Pleistocene environment. At Derryvree, County Fermanagh, organic sediments between glacial tills indicate a locally ice-free, open tundra wetland during a broad, uncertain interval, later buried by ice. Plant and insect remains reveal cold, damp, sparsely vegetated ground. Castlepook Cave, County Cork, preserves mixed remains of mammoths, reindeer, giant deer, predators and other cold-adapted animals, demonstrating intermittent access to suitable habitats. A marked reindeer bone may indicate human butchery, but cannot establish settlement. Subsequent glaciation destroyed or obscured evidence of Ireland’s earliest visitors.
Derryvree’s Entombed Herbarium
Around 31,439 BCE, a modern label within Marine Isotope Stage 3, Ireland was a changing cold-climate landscape rather than a historically documented society. Derryvree, County Fermanagh, preserves freshwater organic sediments beneath later glacial till, dated broadly to 36,900–31,700 calendar years BP. Pollen, plants and insects indicate open, wet tundra with sedges, mosses, herbs and pools. Cave faunas show reindeer, mammoth, hyaena and other cold-adapted animals reached Ireland, though deposits are mixed and imperfectly dated. A marked reindeer bone at Castlepook may suggest human butchery, but secure evidence of people is far later. Expanding ice eventually buried Derryvree’s wetland biological record.
Fermanagh’s Intertill Reedbed
Around 31,440 BCE, Ireland lay within the climatically unstable later Marine Isotope Stage 3, although no evidence can identify events in that exact year. At Derryvree, County Fermanagh, freshwater silts sealed between glacial tills preserve a cold, treeless tundra wetland of sedges, mosses and shallow water. Castlepook Cave, County Cork, contains remains of mammoth, reindeer, giant deer, bear and hyena, indicating changing animal movements rather than a permanent fauna. A cut-marked reindeer bone may indicate human butchery about 33,000 years ago, but cannot prove settlement. Later glaciation obscured evidence; no politics, monuments, farming or permanent communities are firmly known anywhere.
