[c] Mitylene was the chief city of the isle of Lesbos, in the Ægean Sea, near the coast of Asia. The place at this day is called Metelin, subject to the Turkish dominion. Ephesus was a city of Ionia, in the Lesser Asia, now called Ajaloue by the Turks, who are masters of the place.

[d] Domitius Afer and Julius Africanus have been already mentioned, section xiii. note [d]. Both are highly praised by Quintilian. For Asinius Pollio, see s. xii. note [e].

Section XVI.

[a] Quintilian puts the same question; and, according to him, Demosthenes is the last of the ancients among the Greeks, as Cicero is among the Romans. See Quintilian, lib. viii. cap. 5.

[] The siege of Troy is supposed to have been brought to a conclusion eleven hundred and ninety-three years before Christian æra. From that time to the sixth year of Vespasian (A.U.C. 828), when this Dialogue was had, the number of years that intervened was about 1268; a period which, with propriety, may be said to be little less than 1300 years.

[c] Demosthenes died, before Christ 322 years, A.U.C. 432. From that time to the sixth of Vespasian, A.U.C. 828, the intervening space was about 396 years. Aper calls it little more than 400 years; but in a conversation-piece strict accuracy is not to be expected.

[d] In the rude state of astronomy, which prevailed during many ages of the world, it was natural that mankind should differ in their computation of time. The ancient Egyptians, according to Diodorus Siculus, lib. i. and Pliny the elder, lib. vii. s. 48, measured time by the new moons. Some called the summer one year, and the winter another. At first thirty days were a lunar year; three, four, and six months were afterwards added, and hence in the Egyptian chronology the vast number of years from the beginning of the world. Herodotus informs us, that the Egyptians, in process of time, formed the idea of the solar or solstitial year, subdivided into twelve months. The Roman year at first was lunar, consisting, in the time of Romulus, of ten months. Numa Pompilius added two. Men saw a diversity in the seasons, and wishing to know the cause, began at length to perceive that the distance or proximity of the sun occasioned the various operations of nature; but it was long before the space of time, wherein that luminary performs his course through the zodiac, and returns to the point from which he set out, was called a year. The great year (annus magnus), or the PLATONIC YEAR, is the space of time, wherein the seven planets complete their revolutions, and all set out again from the same point of the heavens where their course began before. Mathematicians have been much divided in their calculations. Brotier observes, that Riccioli makes the great year 25,920 solar years; Tycho Brahe, 25,816; and Cassini, 24,800. Cicero expressly calls it a period of 12,954 years. Horum annorum, quos in fastis habemus, MAGNUS annos duodecim millia nonagentos quinquaginta quatuor amplectitur solstitiales scilicet. For a full and accurate dissertation on the ANNUS MAGNUS, see the Memoirs of the Academy of Belles Lettres, tom. xxii. 4to edit. p. 82.

Brotier, in his note on this passage, relates a fact not universally known. He mentions a letter from one of the Jesuits on the mission, dated Peking, 25th October 1725, in which it is stated, that in the month of March preceding, when Jupiter, Mars, Venus, and Mercury were in conjunction, the Chinese mathematicians fancied that an approximation of Saturn was near at hand, and, in that persuasion, congratulated the emperor YONG-TCHING on the renovation of the world, which was shortly to take place. The emperor received the addresses of the nobility, and gave credit to the opinion of the philosophers in all his public edicts. Meanwhile, Father Kegler endeavoured to undeceive the emperor, and to convince him that the whole was a mistake of the Chinese mathematicians: but he tried in vain; flattery succeeded at court, and triumphed over truth.

[e] The argument is this: If the great year is the measure of time; then, as it consists, according to Cicero, of 12,954 solar years, the whole being divided by twelve, every month of the great year would be clearly 1080 years. According to that calculation, Demosthenes not only lived in the same year with the persons engaged in the Dialogue, but, it may be said, in the same month. These are the months to which Virgil alludes in the fourth eclogue:

Incipient magni procedere menses.