Virtually all historical critics have have concluded that the OT had reached it's final and current form by 200 BC.KingandPriest wrote: The bible is a collection of books written by various authors throughout history. This is a fact I doubt any will refute. It was once believed that sections of the bible could have been altered to make it match known historical records. Prior to the discovery of the dead sea scrolls (DSS), the earlies copy of the bible dated somewhere in the 10th century AD. This meant it would have been possible for someone to include facts known about Jesus and change old testament scriptures to make them fit. The discovery of the DSS between 1947-1956 debunked this theory and found that the old testament recorded in these historical writings matched the current King James version with 95% accuracy. The only difference was due to spelling differences of certain names of people or cities, and no book Esther. The texts were found in Hebrew, Aramaic and Greek. The collection of old testament documents in the DSS were dated using various dating methods between 200 BC – AD 26. There were also other writings found which have a greater date range of possible creation, 400 BC – AD 300.
This depends entirely on the motivation for doing so. The Bible is the single largest selling book in history. As one might expect, given that Christians make up about 30% of the world's population.KingandPriest wrote: I now ask, what is the probability of any historical book of similar length (old testament only) dated from earliest found to 200 BC, being translated into multiple languages, while retaining 95% accuracy, over 1000 years? To find this we must find the probability of each event, and multiply their probabilities.
Christianity has been the world's largest religion for much of the last 2,000 years. Agreed.KingandPriest wrote: According to Google’s advanced algorithms there are about 210 million unique books that have been ever been written. Of these, Google says 129M have been published. We know the printing press was not invented until the mid1400s, and paper making is attributed to China around AD 105. If I cut in half the remaining unpublished books by half for those used by the printing press and paper, I am left with about 20M books which could have existed in the world prior to AD 105. Lets say half of this books are of similar length to the old testament.
Now we have 10M/20M books multiplied by number of books translated into multiple languages, 1/100, multiplied by the t-stat value 0.05, 1/1.96, multiplied by time between translation comparisons 1/1000 = (0.5) X (1/100) X (1/1.96) X (1/1000) = 2.5 X 10^-5
Wikipedia
Library of Alexandria
Paganism was made illegal by an edict of the Emperor Theodosius I in AD 391. The temples of Alexandria were closed by Patriarch Theophilus of Alexandria in AD 391.[32] The historian Socrates of Constantinople describes that all pagan temples in Alexandria were destroyed, including the Serapeum.[34] Since the Serapeum had at one time housed a part of the Great Library, some scholars believe that the remains of the Library of Alexandria were destroyed at this time.[32][35] However, it is not known how many, if any, books were contained in it at the time of destruction, and contemporary scholars do not mention the library directly.
https://en.wikipedia.org/wiki/Library_of_Alexandria
Once Christians got legal control of the Roman government, any book considered to be pagan was destroyed if discovered. Except, by in large, books by the great Greek Philosophers. Christians theologians admired Greek Philosophy.
KingandPriest wrote: So the probability of the old testament being altered as a matter of historical text written before the birth of Jesus is 2.5 in 100,00
The OT WAS altered, into a form written in Greek known as the Septuagint. The Septuagint is widely used today by the Orthodox church, but is it largely not accepted by the Catholic church and is generally spurned by Protestants who prefer the Hebrew version of the OT as the more accurate. Jews widely consider it an abomination. Why? Because no complete copies written prior to the time of Jesus exist, and those copies were clearly revised by Christians who included very plain references to the coming of Jesus that clearly were NOT in the original Hebrew OT.
https://en.wikipedia.org/wiki/Septuagint