Myths of the Cycle of the Gods
The Cycle of the Gods — the Mythological Cycle — contains the oldest stories in Irish tradition. These are the tales of the divine races who held Ireland before the ancestors of the Irish arrived: the Fir Bolg, the Tuatha Dé Danann, and the Fomorians. They were written down by medieval monks who treated them as history — as the pre-Christian past of their own island — and that framing gives them a different texture from pure mythology.
The stories here range from the sweeping historical framework of the Book of Invasions to intimate tales of love, transformation, and loss. Some of them are among the finest narratives in medieval European literature. Some survive only in fragments. All of them shaped how the Irish understood their own origins, their gods, and their land.
They are presented here in the order they appear in the mythological timeline — from the first taking of Ireland to the establishment of the fairy mounds.
Cycle of the Gods (Mythological Cycle)
Book of Invasions
How Ireland was won, lost, and won again — six times over Before Ireland belonged to anyone, it had to be fought for. The Book of Invasions — the Lebor Gabála Érenn in Irish — is the great mythological history of Ireland, the story of six waves of people who came to the island, one […]
First Battle of Mag Tuired
The gods arrive — and Ireland must be won When the Tuatha Dé Danann arrived in Ireland, they didn’t find it empty. The Fir Bolg were already there — the people who had returned to Ireland from slavery in Greece, who had divided the island into its five provinces, and who had been living on […]
Second Battle of Mag Tuired
Lugh, Balor, and the greatest battle in Irish mythology If the First Battle of Mag Tuired was the Tuatha Dé Danann winning Ireland, the Second Battle of Mag Tuired was them almost losing it. This is the greatest conflict in all of Irish mythology — the war between the gods and the fomorians, the ancient […]
Taking of the Fairy Mounds
How the gods of Ireland became the fairy people When the Milesians — the ancestors of the Irish people — defeated the Tuatha Dé Danann in battle, the gods did not simply die or disappear. They made a deal. And the deal they made is why every hill in Ireland might have something extraordinary living […]
The Battle of Tailtiu
A battle, a queen’s sacrifice, and Ireland’s ancient Olympics The Battle of Tailtiu was the final defeat of the Fir Bolg and the definitive establishment of the Tuatha Dé Danann as the rulers of Ireland. But the story doesn’t end with the battle. It ends with a queen who gave her life clearing farmland, and […]
The Children of Lir
Nine hundred years as swans — the most heartbreaking story in Irish mythology Of all the tragic stories in Irish mythology, the Children of Lir is the one that has made people cry for the longest. It is the story of four royal children — Fionnuala, Aodh, Fiachra, and Conn, the sons and daughter of […]
The Children of Tuirenn
A murder, an impossible quest, and a father’s grief The Children of Tuireann is one of the great revenge stories of Irish mythology — except that the revenge takes the form not of a sword, but of a list. When the god Lugh discovered that the three sons of Tuireann — Brian, Iuchar, and Iucharba […]
The Dream of Óengus
A god falls in love with a girl he has only ever seen in his sleep The Dream of Óengus is one of the shortest and most charming love stories in Irish mythology — the story of a god who falls so completely in love with a girl he has only ever seen in his […]
The Wooing of Étaín
Love, jealousy, and a woman who was reborn across a thousand years The Wooing of Étaín is one of the strangest and most beautiful love stories in Irish mythology. It follows a woman — Étaín, the most beautiful woman in Ireland — across two lives and a thousand years, through transformation into a butterfly, a […]
Tuan mac Cairill
The man who remembered everything — because he was there for all of it Most stories about Ireland’s mythological past were written down by monks who were working from tradition — from stories told and retold across generations. But the Story of Tuan mac Cairill is different. It is told by someone who was actually […]