A question about the bible?

The original scripts of the Bible were written in Greek and Aramaic, so since most Christians don't speak or understand those old tongues they had to be translated into different contemporary languages. The oldest stories of the Bible (Genesis) were oral traditions before finally being written down. The bible, especially the Old Testament, is really a compilation of separate books written over the span of centuries, before the birth of Christ. The New Testament (Gospels and Letters, Acts, Revelation) was written last, over a period of 100-150 years after the death of Christ. As for the Gospels, Matthew, Mark, and Luke are called the synoptic Gospels because they are similar in outline and content. The Gospel of John is different because it has fewer of the parables and more of theological discourse. This is just a basic explanation.