How did the differences between the Catholic and Protestant Bible come about

Question: How did the differences between the Catholic and Protestant Bible come about?

Answer: This is a somewhat complicated issue, but I'll do my best to make it short and sweet. We must first remember that God did not just drop a book from the sky and "Whomp, there it is," we had the Bible. The Bible developed over literally thousands of years. While the Jews were God's chosen people, they were inspired by God to put in writing the teachings, rules, beliefs, and history of the people. Eventually, these became books like Genesis, Joshua, Isaiah, etc. The Jews composed a list of these books that taught correctly what they believed. This list became known as a Canon. As time went on, the Jewish people were conquered by many people, and the world became dominated by Greek culture. The Greeks wanted a copy of all the books in the world, including this Jewish list of 46 books which comprised the Jewish beliefs. So 70 scholars translated these 46 books and this Greek translation of the canon became known as the Septuagint (from the Latin word for 70). This happened around the 2nd or 3rd century BC. This list was generally accepted by most Jews, but not all because nothing was definitively defined.
A few centuries later, some Jewish rabbis wanted to make a definitive list(canon)-some think due in part to a new sect of people known as Christians who were "changing the Jewish teaching"-and met at a place called Jamnia around 100 AD. They made a canon (list) that had only 39 books, rejecting the 7 books that were mentioned in the previous post mainly because they could not find the original Hebrew (there were 3 other criteria as well). The early Christians however used the Greek canon (the Septuagint) because Christ used this version. For example, Our Lord in Matt 5:34 quotes from Sirach 23:9; Romans 11:34 refers to Wisdom 9:13. The list can go on and on.
So for about 1400 years, all Christians used the Greek Canon. In 1400 years, Christianity spread to different parts of the world and many of them eventually did not know Greek or Hebrew. So they had to translate it into their native tongue (the vernacular). They would translate it with the Greek Canon however because this is the canon they Church unofficially promoted. Then, when the Protestant Revolt (the Reformation) came, the reformers started to make translations of Scripture as well, and for one reason or the other chose the canon (list) from Jamnia with only 39 books. This tradition is carried down by the descendants of the Protestant Reformers even to today and that's where you get the difference between Catholic and Protestant Bibles.