their great Year of the World, that is, the Revolution of the whole Heavens, to conſiſt of thirty ſix thouſand Years. But the Moderns are ſenſible that this imaginary Revolution of the Heaven of the Stars, is nothing elſe than the Revolution of the Poles of the Earth, which is perform'd in twenty five thouſand nine hundred Years. It may be proper to obſerve tranſiently in this Place, that Sir Iſaac, by determining the Figure of the Earth, has very happily explain'd the Cauſe of this Revolution.
All this being laid down, the only Thing remaining to ſettle Chronology, is, to ſee thro' what Star, the Colure of the Equinoxes paſſes, and where it interſects at this Time the Ecliptick in the Spring; and to diſcover whether ſome ancient Writer does not tell us in what Point the Ecliptic was interſected in his Time, by the ſame Colure of the Equinoxes.
Clemens Alexandrinus informs us, that Chiron, who went with the Argonauts, obſerv'd the Conſtellations at the Time of that famous Expedition, and
