The Quran was revealed over a period of 23 years: 13 years in Mecca and 10 years in Medina.
The Meccan revelations are earlier than the Medinite.
The Quran was written in the lifetime of Prophet Mohammed according to his instructions, but was in sporadic way,
Then following the death of the Prophet - salam to him - the Quran was collected in one book in the time of the Caliphate Othman, by the Prophet companion Zaid son of Thabit by the instruction of Othman.
The Quran was collected in one book in 113 sooras or chapters: in sequence according to the length of the soora, so that the long sooras came before the short, and was not arranged according to the chronological sequence.
Here, I will try to mention some of the early revelations: the Meccan sooras:
The first soora revealed to Prophet Mohammed was the soora 96
(In the name of God, Most Gracious, Most Merciful)
1. Recite [O Mohammed] in the name of your Lord Who created [the universe from non-existence.]
2. [Who] created man from the 'larva-like structure'.
3. Recite [O Mohammed], and your Lord is the Most Generous [more than all the generous.]
4. Who taught [the writing] with the pen [so that heavenly revelations, the religious knowledge and others might be written.]
6. [Moreover, man longs to know the forefuture and the metaphysics.]
No, [We shall not teach him that; for then] man will surely rebel.
7. If he knew [the metaphysics or the forefuture], he would forgo [the religion and the heavenly scriptures and would deny the existence of the Creator.]
[Then God – be glorified – started to threaten this associater who denied the ‘sending to the Next Life’ and the ‘Judgment’, so He said:]
8. Finally, the return [of the unbeliever] will be to your Lord.
[Abu-Jahl used to prevent the praying men from the prayers, and prevent people from believing in the Prophet; therefore, these ayat were revealed concerning him:]
9. Have you considered [what a punishment will be for 'Abu-Jahl'] who forbids
10. The servant [of God] when he prays?
11. Have you considered [what reward will be for him] if he follows the guidance [of God]?
12. Or [what reward will be for him] if he bids piety [rather than forbidding the prayers]?
13. Have you considered, if he disbelieves [in the Quran] and turns away [from the truth, what punishment he will have in the Fire]?
14. Does he not know that God does see [his deeds, for which He will accordingly admit him into Hell]?
15. No, indeed, [he will not be delivered from the Fire]; surely if he refrains not, We shall [let the Fire] strike him on the forelock.
16. The forelock of a liar [and] sinful [man.]
[When Abu Jahl came and spoke to God’s messenger, the Prophet – salam to him – scolded him; so Abu Jahl said: “Do you scold me, Mohammed, while you know how many men are with me!?”
Therefore, His saying – be glorified – was revealed:]
17. So let him call [then] on his counsel [henchmen.]
18. We will call out the stout [angels of punishment to take him.]
19. Nay! Do not obey his [words], but yield [to the command of your Lord], and draw nigh [to God by obeying Him.])
More explanation is here:
Therefore, this soora was the first soora revealed to Prophet Mohammed - salam to him.
The Meccan revelations are earlier than the Medinite.
The Quran was written in the lifetime of Prophet Mohammed according to his instructions, but was in sporadic way,
Then following the death of the Prophet - salam to him - the Quran was collected in one book in the time of the Caliphate Othman, by the Prophet companion Zaid son of Thabit by the instruction of Othman.
The Quran was collected in one book in 113 sooras or chapters: in sequence according to the length of the soora, so that the long sooras came before the short, and was not arranged according to the chronological sequence.
Here, I will try to mention some of the early revelations: the Meccan sooras:
The first soora revealed to Prophet Mohammed was the soora 96
(In the name of God, Most Gracious, Most Merciful)
1. Recite [O Mohammed] in the name of your Lord Who created [the universe from non-existence.]
2. [Who] created man from the 'larva-like structure'.
3. Recite [O Mohammed], and your Lord is the Most Generous [more than all the generous.]
4. Who taught [the writing] with the pen [so that heavenly revelations, the religious knowledge and others might be written.]
6. [Moreover, man longs to know the forefuture and the metaphysics.]
No, [We shall not teach him that; for then] man will surely rebel.
7. If he knew [the metaphysics or the forefuture], he would forgo [the religion and the heavenly scriptures and would deny the existence of the Creator.]
[Then God – be glorified – started to threaten this associater who denied the ‘sending to the Next Life’ and the ‘Judgment’, so He said:]
8. Finally, the return [of the unbeliever] will be to your Lord.
[Abu-Jahl used to prevent the praying men from the prayers, and prevent people from believing in the Prophet; therefore, these ayat were revealed concerning him:]
9. Have you considered [what a punishment will be for 'Abu-Jahl'] who forbids
10. The servant [of God] when he prays?
11. Have you considered [what reward will be for him] if he follows the guidance [of God]?
12. Or [what reward will be for him] if he bids piety [rather than forbidding the prayers]?
13. Have you considered, if he disbelieves [in the Quran] and turns away [from the truth, what punishment he will have in the Fire]?
14. Does he not know that God does see [his deeds, for which He will accordingly admit him into Hell]?
15. No, indeed, [he will not be delivered from the Fire]; surely if he refrains not, We shall [let the Fire] strike him on the forelock.
16. The forelock of a liar [and] sinful [man.]
[When Abu Jahl came and spoke to God’s messenger, the Prophet – salam to him – scolded him; so Abu Jahl said: “Do you scold me, Mohammed, while you know how many men are with me!?”
Therefore, His saying – be glorified – was revealed:]
17. So let him call [then] on his counsel [henchmen.]
18. We will call out the stout [angels of punishment to take him.]
19. Nay! Do not obey his [words], but yield [to the command of your Lord], and draw nigh [to God by obeying Him.])
More explanation is here:
Therefore, this soora was the first soora revealed to Prophet Mohammed - salam to him.