Flavius Philostratus'
Life of Apollonius of Tyana (v.2) says, "And they also say that the Islands of the Blessed are to be fixed by the limits of
Libya where they rise towards the uninhabited promontory." In this geography Libya was considered to extend westwards through
Mauretania "as far as the mouth of the river Salex, some nine hundred
stadia, and beyond that point a further distance which no one can compute, because when you have passed this river Libya is a desert which no longer supports a population."
Plutarch, who refers to the "fortunate isles" several times in his writings, locates them firmly in the Atlantic in his
vita of
Sertorius. Sertorius, when struggling against a chaotic civil war in the closing years of the
Roman Republic, had tidings from mariners of certain islands a few days' sail from
Hispania. Additionally, from what Sertorius learned from these men, it is said that he considered retiring from Roman political life altogether to pursue these islands, but future conflicts prevented him from doing so: Here he met some sailors recently arrived from the Atlantic islands, two in number, separated only by a narrow channel, and 10,000 stades from the African coast; these are called the Isles of the Blessed. Rains fall there seldom, and these are moderate, but for the most part they enjoy gentle breezes carrying dew, and so the islands not only provide soil rich for plowing and planting, but also bear fruit that grows on its own, abundant and sweet, to feed the inhabitants who enjoy leisure without toil or trouble. With temperate seasons that change only moderately, the islands possess a pleasant climate. The north and east winds blowing out from that region over the long distance dissipate in the open space and lose their force, while the south and west winds passing over the ocean bring occasional gentle showers from the sea, but often bring cool to the moist, clear weather and gently nourish the soil. And so even among the barbarians a firm belief prevails that here are the Elysian Fields and the abode of the blessed, of which
Homer sang.
Pliny the Elder's
Natural History adds to the obligatory description—that they "abound in fruit and birds of every kind"—the unexpected detail that, "[t]hese islands, however, are greatly annoyed by the putrefying bodies of monsters, which are constantly thrown up by the sea".
Juba II (52/50 BCE—CE 23), King of Numidia and Mauretania, adds his observation of its geographical location. He states that the Fortunate Islands are positioned to the south in a nearly westerly direction, distanced from the Purple Islands by a measurement of six hundred and twenty-five miles, the sailing made for a measurement of two hundred and fifty miles due west, then three hundred and seventy-five due east. The first island is stated to be named Ombrios, containing its mountains a lake and some trees, appearing similar to giant fennel. The second island is Junonia, stated to have nothing distinct besides a small temple of stone and a smaller island of the same name in its immediate vicinity. The third is Capraria, inhabited by an infestation of large lizards. According to Juba also is Ninguaria, which is positioned in sight of the Fortunate Islands, and has received its name from its perpetual snows. Situated beside it is Canaria, inhabited by dogs of large sizes, with traces of buildings notably present as well. Although all these islands are fertile, Canaria produces caryota in great quantity, in addition to pine nuts, honey, papyrus, and the fish silurus. The Isles are mentioned in Book II of
A True History by the Greek satirist
Lucian of Samosata. The author makes fun of the heroes residing there by giving an account of their petty squabbles as presented to the court of the magistrate,
Rhadamanthus. He goes on to describe other observations of how the residents occupy their time, using every opportunity to satirise both contemporary life and Greek mythology.
Ptolemy used these islands as the reference for the measurement of geographical
longitude and they continued to play the role of defining the
prime meridian through the
Middle Ages. ==Location==