Stacmon
Explorer
Do you have a reference for that? If so, I'd like to read more about it.
Also, even if the above is true, that doesn't mean it wasn't changed before that point. For example, if we play a game of broken telephone and the word we start with is "Donkey," it matters very much if the second, third, fourth, etc. person in the chain of transmission changes the word (mistakenly or deliberately) to "Monkey." Even if the game continues on for 2300 years after that point and every further transmission is correct (ie: every person hears "Monkey" instead of some new word, like "Munchy"), it still doesn't mean that the word is the same as the one we began with.
On the other hand, if a different game of broken telephone is played, and the word "Donkey" is retained from beginning to end, even if the game lasted 1300 years instead of 2500+, the end result is that the word is still the same, "Donkey."
Consider the same thing regarding revelation from God. Just because one form of revelation has stayed the same (and can be proven to have stayed the same) for longer than another, the question is whether or not it is identical to the original revelation. This is the case for the Qur'an but I don't believe anyone has conclusively made the argument regarding the Torah/Old Testament. In fact, some go so far as to argue that it developed and changed over time. Here is a relevant section in Wikipedia:
Classical rabbinic writings offer various ideas on when the entire Torah was revealed. The revelation to Moses at Mount Sinai is considered by many to be the most important revelatory event. According to datings of the text by Orthodox rabbis this occurred in 1280 BCE. Some rabbinic sources state that the entire Torah was given all at once at this event. In the maximalist belief, this dictation included not only the "quotes" which appear in the text, but every word of the text itself, including phrases such as "And God spoke to Moses...", and included God telling Moses about Moses' own death and what would happen afterward.
Other classical rabbinic sources hold that the Torah was revealed to Moses over many years, and finished only at his death. Another school of thought holds that although Moses wrote the vast majority of the Torah, a number of sentences throughout the Torah must have been written after his death by another prophet, presumably Joshua. Abraham ibn Ezra and Joseph Bonfils observed that some phrases in the Torah present information that people should only have known after the time of Moses. Ibn Ezra hinted, and Bonfils explicitly stated, that Joshua (or perhaps some later prophet) wrote these sections of the Torah. Other rabbis would not accept this belief.
The Talmud (tractate Sabb. 115b) states that a peculiar section in the Book of Numbers (10:35 36, surrounded by inverted Hebrew letter nuns) in fact forms a separate book. On this verse a midrash on the book of Mishle (also called Proverbs) states that "These two verses stem from an independent book which existed, but was suppressed!" Another (possibly earlier) midrash, Ta'ame Haserot Viyterot, states that this section actually comes from the book of prophecy of Eldad and Medad. The Talmud says that God dictated four books of the Torah, but that Moses wrote Deuteronomy in his own words (Talmud Bavli, Meg. 31b). All classical beliefs, nonetheless, hold that the Torah was entirely or almost entirely Mosaic and of divine origin.
In contrast, modern historians conclude that the origin of the Torah indeed came from this time-frame, but developed in different strands, which were eventually redacted together sometime around 400 BCE, the time of Ezra the scribe. These beliefs are accepted as correct by Conservative, Reform and Reconstructionist Judaism. Rabbis in these denominations have developed a number of theories about God and revelation which reject a secular interpretation of the documentary hypothesis, accept that the Torah was written by Moses and later prophets under divine inspiration, and which also strive to be in accord with historical consensus.
On the other hand, no one argues that the Qur'an was developed over hundreds of years, or revealed by anyone other than Muhammad (pbuh).
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In comparison to say Shakespeare, the Bible has passed down quite intact.
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). In your defense to the claim of the Quran being divine, all you do is cite facts about the Quran that don't actually answer whether it was made precisely from God or not. That's kinda like hedging, man. 
