It is very well known for all the world that Allah, is the Arabic translation of GOD, it is also known that all Judaism, Christianity, and Islam, are Abrahamic religions.
First the term Abrahamic religions was not known to either Jews, or Christians before Islam. Muhammad created this idea, and the term, so he can legitimatize his own religion. Also originally, and before the appearance of this term, neither Jews, nor Christians, had the need to relate teir religions to Abraham. Moreover, till this day they don't have that need, they relate their religions to Moses, and Christ. So the term Abrahamic religions, was created, and used by Islam, to engage itself, with the two main religions, which are undoubtedly from GOD.
Second the word Allah, referring to Muslim's GOD, and the claim that he is the same GOD of both the Jews, and Christians is also incorrect.
What Archaeology Says about Allah
Muslims claim that in pre-Islamic times, "Allah" was the biblical God of the Patriarchs, prophets and apostles. Indeed, the credibility of Islam as a religion stands or falls on its core claim of historical continuity with Judaism and Christianity. No wonder, then, that many Muslims get uppity when the claims of Islam are subjected to the hard science of archaeology.
Because archaeology provides irrefutable evidence that Allah, far from being the biblical God of Abraham, Isaac and Jacob, was actually the pre-Islamic pagan moon-god. Indeed, it is an established archaeological fact that worship of the moon-god was the main religion of the ancient Middle East.
But what about the Arabian Peninsula, where Mohammed (570-632) launched Islam? During the last two centuries, prominent archaeologists have unearthed thousands of inscriptions which prove beyond any doubt that the dominant religion of Arabia during Mohammed's day was the cult of the moon-god.
In fact, for generations before Mohammed was born, the Arabs worshipped some 360 pagan gods housed at a stone temple in Mecca called the Kabah. According to archaeologists, the chief deity of Mecca was the moon-god called al-ilah (meaning the god or the idol), which was shortened to Allah in pre-Islamic times. Pagan Arabs even used Allah in the names they gave themselves: Mohammed's father (Abdallah), for example, had Allah as part of his name.
What History Says about Allah
Historians say that pre-Islamic Arabs worshipped the moon-god by bowing in prayer toward Mecca several times a day. They would also make a pilgrimage to Mecca, run around the Kabah seven times and throw stones at the devil. And they fasted for one month, which began with the appearance of the crescent moon and ended when the crescent moon reappeared.
These same rites form the core of Islam today: Muslims bow in prayer toward Mecca; they make a pilgrimage to Mecca and run around the Kabah seven times; and they still throw stones at the devil. They also observe the fast of Ramadan, which begins and ends with the crescent moon.
Moreover, the ancient symbol of the pagan moon-god, the crescent moon, is the official symbol of Islam; it appears on the flags of Muslim countries, as well as on the tops of mosques and minarets everywhere.
Historians say that Mohammed, who as a traveling trader was exposed to Judaism and Christianity during his visits to different parts of the Middle East, tried to mimic those monotheistic faiths by taking Allah, the main deity within the Arabian pantheon, and making it the only god. Indeed, the basic confession of Islam is not that "Allah is Great" but that "Allah is Greater". Greater than all the other idols, that is.
But Islam also draws from other pagan traditions. For example, the tale of Mohammed's night journey into heaven parallels the Zoroastrian story of Arta Viraf. Zoroastrianism also inspired the Islamic belief that dark-eyed virgins await every man who enters heaven. And the Islamic ritual of praying five times a day? That, historians say, originates with the Sabeans, Syrian pagans who practiced an ecumenical mixture of Babylonian and Hellenic religion.
To confirm the above quote which is saying that the Muslim haj, is originally a pagan cermony
Volume 1, Book 8, Number 365:
Narrated Abu Huraira:
On the Day of Nahr (10th of Dhul-Hijja, in the year prior to the last Hajj of the Prophet when Abu Bakr was the leader of the pilgrims in that Hajj) Abu Bakr sent me along with other announcers to Mina to make a public announcement: "No pagan is allowed to perform Hajj after this year and no naked person is allowed to perform the Tawaf around the Ka'ba. Then Allah's Apostle sent 'All to read out the Surat Bara'a (At-Tauba) to the people; so he made the announcement along with us on the day of Nahr in Mina: "No pagan is allowed to perform Hajj after this year and no naked person is allowed to perform the Tawaf around the Ka'ba."
Volume 2, Book 26, Number 689:
Narrated Abu Huraira:
In the year prior to the last Hajj of the Prophet when Allahs Apostle made Abu Bakr the leader of the pilgrims, the latter (Abu Bakr) sent me in the company of a group of people to make a public announcement: 'No pagan is allowed to perform Hajj after this year, and no naked person is allowed to perform Tawaf of the Kaba.' (See Hadith No. 365 Vol. 1)
Volume 4, Book 53, Number 402:
Narrated Abu Huraira:
Abu Bakr, on the day of Nahr (i.e. slaughtering of animals for sacrifice), sent me in the company of others to make this announcement: "After this year, no pagan will be allowed to perform the Hajj, and none will be allowed to perform the Tawaf of the Ka'ba undressed." And the day of Al-Hajj-ul-Akbar is the day of Nahr, and it called Al-Akbar because the people call the 'Umra Al-Hajj-ul-Asghar (i.e. the minor Hajj). Abu Bakr threw back the pagans' covenant that year, and therefore, no pagan performed the Hajj in the year of Hajj-ul-Wada' of the Prophets.
This hadith reveals two realities, first haj was is a pagan habit, and they also performed it naked, all what Islam did, is covering them with a white sheet.
Once again, back to Allah
The name was previously used by pagan Meccans as a reference to the creator deity, possibly the supreme deity in pre-Islamic Arabia.[4][6] The concepts associated with the term Allah (as a deity) differ among religious traditions. In pre-Islamic Arabia amongst pagan Arabs, Allah was not considered the sole divinity, having associates and companions, sons and daughters–a concept which Islam thoroughly and resolutely did away with. In Islam, the name Allah is the supreme and all-comprehensive divine name. All other divine names are believed to refer back to Allah.[7] Allah is unique, the only Deity, creator of the universe and omnipotent.[1][2] Arab Christians today use terms such as Allāh al-ʼAb ( الله الأب, "God the Father") to distinguish their usage from Muslim usage.[8] There are both similarities and differences between the concept of God as portrayed in the Qur'an and the Hebrew Bible.[9] It has also been applied to certain living human beings as personifications of the term and concept.[10][11]



