Yoel Natan in his book 'Moon-O-Theism' is entirely correct when we writes about the Muhammadan cult, so beloved by Western quackademics and earnest large-brained Multi-cultists:

“Pre-Islamic history was covered up because many early Islamic scholars knew that Allah is a rehabilitated Pre-Islamic moon god. Muslims knew their competitors the Christians and Jews, would mock Muslims if Christians and Jews could prove Allah was a moon-god. Muslim scholars knew that if people started comparing Islam to pre-Islamic astral paganism they would realize that Islam is mostly recycled paganism.” p. 309

The above is obvious. The entire cult of Islam revolves around pagan moon worship. Allah is simply Hu'Bal or Baal, which came from the Babylonian-Sumerian idol Sin, the moon deity. For Muhammad and other Arabian illiterates the worship of the moon and tracking its progress in the sky was the central feature of their calendaring and ritualized existence. Islam is very clear that it is the moon and its cycles which must be worshipped in the guise of the Allah idol. As Natan states:

“To Muhammad tracking astral bodies was worship. Even today, most Muslim jurists consider it an act of worship to watch for the crescent-moon to mark the start of the new month.”

“Interestingly, one of the moon-god Sin's titles was 'lord of the calendar and of wisdom'.”

The Allah idol or Baal is presented as the only free-will, omnipotent force in the universe. This presentation is a derivative of the Meccan cult belief, that the moon idol [Hubal or Baal], was the god of wisdom and time. All things passed through Hu'bal.

Natan also mentions Koranic verse 9:36, which is the usual bloody and fascistic Koranic call to arms to liquidate the Infidel non-Moslem. It also concerns itself however with worshipping only the moon calender, not the Sol-calendar of Jews and Christians:

9:36 Verily, the number of months with Allah is twelve months (in a year), so was it ordained by Allah on the Day when He created the heavens and the earth; of them four are Sacred, (i.e. the 1st, the 7th, the 11th and the 12th months of the Islamic calendar). That is the right religion, so wrong not yourselves therein, and fight against the Mushrikun (polytheists, pagans, idolaters, disbelievers in the Oneness of Allah) collectively as they fight against you collectively. But know that Allah is with those who are Al-Muttaqun (the pious - see V.2:2).

And

9:37 The postponing (of a Sacred Month) is indeed an addition to disbelief: thereby the disbelievers are led astray, for they make it lawful one year and forbid it another year in order to adjust the number of months forbidden by Allah, and make such forbidden ones lawful. The evil of their deeds seems pleasing to them. And Allah guides not the people, who disbelieve

The Moslem calendar was not and is not today, the same as that of the Jews, Christians or non-Moslem peoples, who base their calendar on the Sun, not the moon. In this regard Moslems can slaughter the polytheists [Christians, or any who associate partners or idols with the Allah-thing]; since they have rejected the 'true' reckoning of time.

“...Muhammad mentions polytheism and intercalation together, and his assertion that lunar calendars constitute monotheistic worship, implies that Allah was a moon-god. If intercalation implies sun- and moon-god worship, then a purely lunar calendar implies lunar monotheism, or moon-o-theism.”

In pagan Arabia the sun-god was portrayed as evil and not to be worshipped. Hence throughout the Koran, the sun-calendaring Christians and Jews are always linked to Satan and evil. In this context 9:36-37 make perfect sense to the illterate Bedouin mind, trained from childhood to regard the moon as their redeemer and the sun as the evil icon of existence. Linking Jews and Christians to the sun simply makes it easier for the Moslem to kill them.