For this reason many ancient people such as Babylonians, Jewries, Greeks, Chinese used moon phases calendar originally. The point is that changing of phases of Luna is one of the celestial phenomena which is easy to watch.
However, scientists continue to argue, when exactly moon sign calendar appeared, but they agree in opinion of its antecedence. It is a territory of modern Iraq, in the cities and states of ancient shumers in the third millennium before Christ. There is a version, that the first lunar cycle calendar arose in Mesopotamia. Connection of calendar and Luna, as astronomic and astrology phenomenon, was happened in deep antiquity.
Lunar phase calendar is a type of calendar, which had arisen because of the different periods of moon phases change.
