_Simplicius_ in his commentary [60] on the first of _Aristotle_'s _Physical Acroasis_, tells us, that _some begin the year upon the Summer Solstice, as the People of _Attica_; or upon the Autumnal Equinox, as the People of _Asia_; or in Winter, as the _Romans_; or about the Vernal Equinox, as the _Arabians_ and People of _Damascus_: and the month began, according to some, upon the Full Moon, or upon the New._ The years of all these Nations were therefore Luni-solar, and kept to the four Seasons: and the _Roman_ year began at first in Spring, as I seem to gather from the Names of their Months, _Quintilis_, _Sextilis_, _September_, _October_, _November_, _December_: and the beginning was afterwards removed to Winter. The ancient civil year of the _Assyrians_ and _Babylonians_ was also Luni-solar: for this year was also used by the _Samaritans_, who came from several parts of the _Assyrian_ Empire; and the _Jews_ who came from _Babylon_ called the months of their Luni-solar year after the Names of the months of the _Babylonian_ year: and _Berosus_ [61] tells us that the _Babylonians_ celebrated the Feast _Sacæa_ upon the 16th day of the month _Lous_, which was a Lunar month of the _Macedonians_, and kept to one and the same Season of the year: and the _Arabians_, a Nation who peopled _Babylon_, use Lunar months to this day. _Suidas_ [62] tells us, that the _Sarus_ of the _Chaldeans_ contains 222 Lunar months, which are eighteen years, consisting each of twelve Lunar months, besides six intercalary months: and when [63] _Cyrus_ cut the River _Gindus_ into 360 Channels, he seems to have alluded unto the number of days in the Calendar year of the _Medes_ and _Persians_: and the Emperor _Julian_ [64] writes, _For when all other People, that I may say it in one word, accommodate their months to the course of the Moon, we alone with the _Egyptians_ measure the days of the year by the course of the Sun._