Appendix - No. 15

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_ Appendix. No. XV.

Circumnavigation of Africa by the Ancients.

The knowledge of the ancients with respect to the Atlantic coast of Africa is considered by modern investigators much less extensive than had been imagined; and it is doubted whether they had any practical authority for the belief that Africa was circumnavigable. The alleged voyage of Endoxns of Cyzicus, from the Red Sea to Gibraltar, though recorded by Pliny, Pomponius Mela, and others, is given entirely on the assertion of Cornelius Nepos, who does not tell from whence he derived his information. Posidonius (cited by Strabo) gives an entirely different account of this voyage, and rejects it with contempt. [327]

The famous voyage of Hanno, the Carthaginian, is supposed to have taken place about a thousand years before the Christian era. The Periplus Hannonis remains, a brief and obscure record of this expedition, and a subject of great comment and controversy. By some it has been pronounced a fictitious work, fabricated among the Greeks, but its authenticity has been ably vindicated. It appears to be satisfactorily proved, however, that the voyage of this navigator has been greatly exaggerated, and that he never circumnavigated the extreme end of Africa. Mons. de Bougainville [328] traces his route to a promontory which he named the West Horn, supposed to be Cape Palmas, about five or six degrees north of the equinoctial line, whence he proceeded to another promontory, under the same parallel, which he called the South Horn, supposed to be Cape de Tres Puntas. Mons. Gosselin, however, in his Researches into the Geography of the Ancients (Tome 1, p. 162, etc.), after a rigid examination of the Periplus of Hanno, determines that he had not sailed farther south than Cape Non. Pliny, who makes Hanno range the whole coast of Africa, from the straits to the confines of Arabia, had never seen his Periplus, but took his idea from the works of Xenophon of Lampsaco. The Greeks surcharged the narration of the voyager with all kinds of fables, and on their unfaithful copies Strabo founded many of his assertions. According to M. Gosselin, the itineraries of Hanno, of Scylax, Polybius, Statius, Sebosus, and Juba; the recitals of Plato, of Aristotle, of Pliny, of Plutarch, and the tables of Ptolemy, all bring us to the same results, and, notwithstanding their apparent contradictions, fix the limit of southern navigation about the neighborhood of Cape Non, or Cape Bojador.

The opinion that Africa was a peninsula, which existed among the Persians, the Egyptians, and perhaps the Greeks, several centuries prior to the Christian era, was not, in his opinion, founded upon any known facts; but merely on conjecture, from considering the immensity and unity of the ocean; or perhaps on more ancient traditions; or on ideas produced by the Carthaginian discoveries, beyond the Straits of Gibraltar, and those of the Egyptians beyond the Gulf of Arabia. He thinks that there was a very remote period when geography was much more perfect than in the time of the Phenicians and the Greeks, whose knowledge was but confused traces of what had previously been better known.

The opinion that the Indian Sea joined the ocean was admitted among the Greeks, and in the school of Alexandria, until the time of Hipparchus. It seemed authorized by the direction which the coast of Africa took after Cape Aromata, always tending westward, as far as it had been explored by navigators.

It was supposed that the western coast of Africa rounded off to meet the eastern, and that the whole was bounded by the ocean, much to the northward of the equator. Such was the opinion of Crates, who lived in the time of Alexander; of Aratus, of Cleanthes, of Cleomedes, of Strabo, of Pomponius Mela, of Macrobius, and many others.

Hipparchus proposed a different system, and led the world into an error, which for a long time retarded the maritime communication of Europe and India. He supposed that the seas were separated into distinct basins, and that the eastern shores of Africa made a circuit round the Indian Sea, so as to join those of Asia beyond the mouth of the Ganges. Subsequent discoveries, instead of refuting this error, only placed the junction of the continents at a greater distance. Marinus of Tyre, and Ptolemy, adopted this opinion in their works, and illustrated it in their maps, which for centuries controlled the general belief of mankind, and perpetuated the idea that Africa extended onward to the south pole, and that it was impossible to arrive by sea at the coasts of India. Still there were geographers who leaned to the more ancient idea of a communication between the Indian Sea and the Atlantic Ocean. It had its advocates in Spain, and was maintained by Pomponius Mela and by Isidore of Seville. It was believed also by some of the learned in Italy, in the thirteenth, fourteenth, and fifteenth centuries; and thus was kept alive until it was acted upon so vigorously by Prince Henry of Portugal, and at length triumphantly demonstrated by Vasco de Gama, in his circumnavigation of the Cape of Good Hope. _

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