There are signs of the existance of a monastery in La Mola towards the 5th century, which could prove that the island was not uninhabited by that time. Later on, towards the 10th century, begins one of the most prosperous periods lived in Formentera: the Arab domination.
Durante los siblos XV-XVI Formentera estuvo deshabitada, debido al peligro que para sus habitentes suponian los piratas, que habian hecho de la isla una especie de refugio y lugar de abastecimiento de alimentos, agua y madera.