This is a question of reliability and there is a basis for it. The Koran/Quran describes four conflicting calls to Muhammed.
First, Muhammed stated that 'Allah' appeared to him in the form of a man. Then Muhammed said that he was called by the Holy Spirit. Later, he said that angels appeared to him and said that Allah had called him to be a prophet. Lastly, he said that a single angel, Gabriel, appeared to him and revealed the Koran to him.
Not only are there these four different claims of revealation that require reconcilliation, if possible, but there are 'lumpings' of people, places and practices which are historically separated by many years and places, all together at the same time. An example is that of 'crucifixion' being used in the time of the Exodus which wasn't a practice until about a thousand years later. Or that the Koran claim that Alexander the great was a Muslim who lived to a ripe old age when history has him as the Greek leader who died in his early 30s. And there are many more conflicts not only between the Koran and The Bible but also between the Koran and historical fact.
Yes.
the Quraan ois recited in arabic because it was revealed in arabic
He did not write the quraan .It was revealed to Muhammad(pease and blessings of God be upon him) from God.
It was revealed along 23 years,from 610 to 632 AD the year in which the prophet Muhammad peace be upon Him had died.
The Quraan was revealed to Muhammad (peace and blessings of Allah be upon him)From Allah(God).From there Islam was introduced to the people.
The first verses of the Quraan to be revealed was the first verses of surah Iqraa. It was revealed to Muhammed via Gabriel in the cave of Hira which is situated in a mountain at the outskirts of Mecca. Answer: The first word revealed in the "Quran" , Holy book of Muslims, is "Iqraa". This means "Read"
Because if there was no prophet Muhamed we will not know the Quraan ,Because all the Quraan is known by prophet and all Quraan is informed prophet Muhamed.
There are 25 nabis which are mentioned in the Quraan. There are many more but the number is not mentioned inside the quraan and sunnah.
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Although this question is not clear, but i would say that Quraan is the only book on earth that has the words of God. God is the one who said every word in it. At the beginning of Islam, Quraan's chapters were only memorized by the beilevers hearts. Though, in the ruling time of khaleefa"Abu Bakr", Quraan was first collected in one book.
Allah(God)
No. There are no pictures in the holy Quraan.