The next race to come to Ireland was the race of Nemed and they held the land but an epidemic came among them and felled many of their race and they were the servants of the Fomorians.

Then the Fomorians exacted a tax against tne Nemedians, that is, two-thirds of the children born each year were to be delivered at the new year to the Fomorians.  It was at this the Nemedians became aggrieved and rose up against their tormentors and all of the race of Nemed were slain.

Then the Fir Bolg came from across the waters and they made alliance with the Fomorians and gave and received in marriage and they ruled the land together and divided it five ways between them.  And so did they rule together, holding court at Balor's Hill until the arrival of the Tuatha de Dannan.

They met the armies of the Fir Bolg on Bealtaine and made to form an alliance, but the king of the Fir Bolg refused and a great battle ensued, with each side using charms and spells each against the other.  After a length of seven years' planning, the war waged on and the Tuatha were victorious.  The Fomorian race was driven back to the sea.

Then the Sons of Mil came to the shores of Ireland and sought to make their home.  The Tuatha made to rid themselves of them by spells and incantations but their leader, Amergin of the White Knee, son of Mil, fought them with incantations and the Milesians came ashore.

The Milesians made agreement between themselves and three Goddesses - Fotla, Banba and Eriu to name the land after them, and they went to do battle with the Tuatha.

The Milesians returned victorious, with the people of Dana retreating beneath the earth.  But the people of Dana were still powerful and began to destroy crops and milk until a treaty was arranged between the two peoples.  The Milesians agreed to give homage to the Tuatha and give them offerings.

Then many of the Tuatha removed themselves to the island Tir Nan Og or Land of the Young or Hy Breasil led by Mannan mac Lir.  Others remained on the land and were given each a sidhe or mound by their king the Dagda.  Thus were the people of Dana become the People of the Sidhe.

And Amergin gave this ley upon arriving in Ireland:

I am the wind on the sea,
I am a wave on the ocean,
I am the roar of the sea,
I am an ox of seven exiles,
I am a hawk on a cliff,
I am a tear of the sun,
I am a turning in a maze,
I am a boar in valour,
I am a salmon in a pool,
I am a lake on a plain,
I am a dispensing power,
I am a spirit of skilful gift,
I am a grass-blade giving decay to the earth,
I am a creative god giving inspiration.

Who else clears the stones of the mountain?
Who is it who declaims the sun's arising?
Who is it who tells where the sun sets?
Who brings cattle from the house of Tethra?
Upon whom do the cattle of Tethra smile?
Who is this ox?
Who is the weaving god who mends the thatch of wounds?
The incantation of a spear,
The incantation of the wind.