It is true that in the later days of the Jewish people, interpreters were appointed in the synagogues to explain the lessons read from the Hebrew Scriptures for the benefit of their foreign brethren; that in all the courts of the Eastern monarchs interpreters were found, through whom they communicated with foreign envoys, or with the motley tribes of their own empire; and that professional interpreters were at the service of foreigners in the great centres of commerce or travel,[6] who, it may be presumed, were masters of several languages. The philosophers, too, who traversed remote countries in pursuit of wisdom, can hardly be supposed to have returned without some acquaintance with the languages of the nations among whom they had voyaged. Solon and Pythagoras are known to have visited Egypt and the East; the latter also sojourned for a considerable time in Italy and the islands; the wanderings of Plato are said to have been even more extensive. Nay, in some instances these pilgrims of knowledge extended their researches beyond the limits of their own ethnographical region. Thus, on the one hand, the Scythian sages, Anacharsis and Zamolxis, themselves most probably of the Mongol or Tartar tongue, sojourned for a long time in countries where the Indo-European family of languages alone prevailed; on the other, the merchants of Tyre were in familiar and habitual intercourse with the Italo-Pelasgic race; and the Phœnician explorers, in their well-known circumnavigation of Africa described by Herodotus, must have come in contact with still more numerous varieties both of race and of tongue. Nevertheless it may fairly be doubted whether these or similar opportunities among the ancients, resulted in any very remarkable attainments in the department of languages. The absence of all record furnishes a strong presumption to the contrary; and there is one example, that of Herodotus, which would almost be in itself conclusive. This acute and industrious explorer devoted many years to foreign travel. He visited every city of note in Greece and Asia Minor, and every site of the great battles between the Greeks and Barbarians. He explored the whole line of the route of Xerxes in his disastrous expedition. He visited in succession all the chief islands of the Egean, as well as those of the western coast of Greece. His landward wanderings extended far into the interior. He reached Babylon, Ecbatana, and Susa, and spent some time among the Scythian tribes on the shores of the Black Sea. He resided long in Egypt, from which he passed southwards as far as Elephantine, eastwards into Arabia, and westwards through Lybia, at least as far as Cyrene. And yet Dahlmann is of opinion that, with all his industry, and all the spirit of inquiry which was his great characteristic, Herodotus never became acquainted even with the language of Egypt, but contented himself with the service of an interpreter.[7]