Sphere seems therefore to have been formed by _Chiron_ and _Musæus_, for the use of the _Argonauts_: for the Ship _Argo_ was the first long ship built by the _Greeks_. Hitherto they had used round vessels of burden, and kept within sight of the shore; and now, upon an Embassy to several Princes upon the coasts of the _Euxine_ and _Mediterranean_ Seas, [74] by the dictates of the Oracle, and consent of the Princes of _Greece_, the Flower of _Greece_ were to sail with Expedition through the deep, in a long Ship with Sails, and guide their Ship by the Stars. The People of the Island _Corcyra_ [75] attributed the invention of the Sphere to _Nausicaa_, the daughter of _Alcinous_, King of the _Pheaces_ in that Island: and it's most probable that she had it from the _Argonauts_, who [76] in their return home sailed to that Island, and made some stay there with her father. So then in the time of the _Argonautic_ Expedition, the Cardinal points of the Equinoxes and Solstices were in the middles of the Constellations of _Aries_, _Cancer_, _Chelæ_, and _Capricorn_. In the end of the year of our Lord 1689 the Star called _Prima Arietis_ was in [Aries]. 28°. 51'. 00", with North Latitude 7°. 8'. 58". And the Star called _ultima caudæ Arietis_ was in [Taurus]. 19°. 3'. 42", with North Latitude 2°. 34'. 5". And the _Colurus Æquinoctiorum_ passing through the point in the middle between those two Stars did then cut the Ecliptic in [Taurus]. 6°. 44': and by this reckoning the Equinox in the end of the year 1689 was gone back 36°. 44'. since the _Argonautic_ Expedition: Supposing that the said _Colure_ passed through the middle of the Constellation of _Aries_, according to the delineation of the Ancients. The Equinox goes back fifty seconds in one year, and one degree in seventy and two years, and by consequence 36°. 44'. in 2645 years, which counted back from the end of the year of our Lord 1689, or beginning of the year 1690, will place the _Argonautic_ Expedition about 25 years after the Death of _Solomon_: but it is not necessary that the middle of the Constellation of _Aries_ should be exactly in the middle between the two Stars called _prima Arietis_ and _ultima Caudæ_: and it may be better to fix the Cardinal points by the Stars, through which the _Colures_ passed in the primitive Sphere, according to the description of _Eudoxus_ above recited. By the _Colure_ of the Equinoxes, I mean a great Circle passing through the Poles of the Equator, and cutting the Ecliptic in the Equinoxes in an Angle of 66½ degrees, the complement of the Sun's greatest Declination; and by the _Colure_ of the Solstices I mean a great Circle passing through the same Poles, and cutting the Ecliptic at right Angles in the Solstices: and by the Primitive Sphere, that which was in use before the motions of the Equinoxes and Solstices were known: now the _Colures_ passed through the following Stars according to _Eudoxus_.