Lebor Gabála Érenn (The Book of the Taking of Ireland) is a collection of poems and prose narratives that purports to be a history of Ireland and the Irish from the creation of the world to the Middle Ages. There are a number of versions, the earliest of which was compiled by an anonymous writer in the 11th century. It synthesized narratives that had been developing over the foregoing centuries. The Lebor Gabála tells of Ireland being settled (or 'taken') six times by six groups of people: the people of Cessair, the people of Partholón, the people of Nemed, the Fir Bolg, the Tuatha Dé Danann, and the Milesians. The first four groups are wiped out or forced to abandon the island, the fifth group represent Ireland's pagan gods, while the final group represent the Irish people (the Gaels).