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Lebor Gabála Érenn (The Book of Invasions)

LYOR ga-VAH-la AIR-en

An 11th-century compilation narrating the mythical settlements of Ireland.

The primary medieval manuscript source for the Mythological Cycle, blending native tradition with biblical pseudo-history.

Referenced by

The Four Cycles of Irish mythology
CycleEntries hereFocus
The Mythological Cycle17The oldest of the four cycles, telling of the Tuatha Dé Danann and the successive invasions of Ireland.
The Fenian Cycle6Tales of Fionn mac Cumhaill and his band of warriors, the Fianna, set generations after the Ulster Cycle in a world of hunting, romance, and roaming adventure.
The Ulster Cycle12The heroic tales of Conchobar mac Nessa's court at Emain Macha, centered on Cú Chulainn and the great cattle raid of the Táin Bó Cúailnge.
The Historical Cycle1Also the Cycle of the Kings — legendary and semi-legendary tales of Ireland's High Kings, treated by medieval scribes as genuine national history.

Sources

Frequently Asked Questions

What is Lebor Gabála Érenn?

Lebor Gabála Érenn ("The Book of Invasions") is a medieval compilation presenting a pseudo-historical account of Ireland's mythical settlement by a succession of peoples, culminating in the Tuatha Dé Danann and finally the Milesians, ancestors of the Gaels.

Who are the peoples described in Lebor Gabála Érenn?

The text describes six waves of settlement — Cessair, Partholón, Nemed, the Fir Bolg, the Tuatha Dé Danann, and finally the Milesians — each displacing or succeeding the last.

Is Lebor Gabála Érenn meant to be read as literal history?

Medieval compilers presented it as genuine history, integrating Irish mythology into a biblical timeline, but modern scholars read it as a literary and political construction designed to give Ireland's ruling families a legitimizing, structured origin myth.