The issue with Bible literacy is that Rome could have been committed to Biblical literacy but was not, http://www.freerepublic.com/focus/religion/2661829/posts?page=352#352 while as for
How can Protestants be certain that they have an infallible collection of Books in Holy Scripture?
- How can the Bible be the sole rule of faith, if no one knows with certainty which books belong in the Bible?
The second presumes a negative answer to the first, and that sola scripture always requires a finished canon.
The first has been responded as referring to how writings were established as Scripture before Rome’s claims, and without an assuredly infallible interpreter, and by such means those who hold to SS have an assuredly infallible body of books by which to judge and establish truth by.
Regarding how Scripture was established, “its means of establishment was essentially the same as how a true man of God is established as such, by his/her unique qualities and supernatural effects, which conform to that which God prior established by the same means. The manna from heaven owes its enduring acceptance to what it is and thus does, more than church decrees, as valid and helpful as they can be.” See http://www.freerepublic.com/focus/religion/2661829/posts?page=314#314
The fact is that Rome herself did not have an infallibly defined canon before Trent, as documented in post 213 which you might have missed, http://www.freerepublic.com/focus/religion/2661829/posts?page=217#217, nor was Luther the first to exclude certain books. Yet she did consider whatever belonged to that class of revelation called Scripture to be authoritative, as do those who hold to SS, though Rome effectively makes oral tradition equal to it, and herself the supreme authority. And yet she has no final complete infallible canon of either tradition or infallible pronouncements.
While the canon has become settled after the same manner that O.T. books were considered Scripture by the time of Christ, sola scriptura essential means that whatever books are considered to be Scripture are the supreme authority on doctrine, Scripture being the only objective authority that is affirmed to be wholly inspired of God, and thus assuredly infallible. In contrast, this is not provided for Rome’s formulaic (scope and content based) infallible magisterium, and its claim to be so effectively rests upon its own declaration to be infallible, when speaking according to its own infallible defined criteria.
We know that the early church did teach infallible truth in Acts 15 as it is recorded in Scripture, and was solidly based upon Scripture and scriptural attestation. But to extrapolate out of that a formulaic infallibility for whatever Rome decrees is another issue, and for the pope you must convince both the EOs as well as the Prots.
Before the 1400's, the vast majority of people in Europe were illiterate as most people never had the opportunity to learn to read because there were few schools and books. Although some people at every level of society could read, most literate people belonged to the upper classes.The literacy rate in Europe can be judged by the literacy rate in France in 1700 which was just 30%. From wikipedia
In the 1440's, the German printer Johannes Gutenberg became the first European to print a book from movable type. As a result, reading material was eventually mass-produced in Europe and inexpensive books became more widely available. One of the first books printed in Europe was the Bible. During the 1500's, the Protestant Reformation and Roman Catholic Counter Reformation spurred people's desire to read the Bible for themselves.
In 12th and 13th century England, the ability to read a particular passage from the Bible entitled a common law defendant to the so-called benefit of clergy provision, which entitled a person to be tried before an ecclesiastical court, where sentences were more lenient, instead of a secular one, where hanging was a likely sentence. This opened the door to literate lay defendants also claiming the right to the benefit of clergy provision, and - because the Biblical passage used for the literacy test was invariably Psalm 51 (Miserere mei, Deus... - "O God, have mercy upon me...") - an illiterate person who had memorized the appropriate verse could also claim the benefit of clergy provision.[23]As Roman authority disappeared in the west, cities, literacy, trading networks and urban infrastructure declined. Where civic functions and infrastructure were maintained, it was mainly by the Christian Church. Augustine of Hippo is an example of one bishop who became a capable civic administrator.
The center of life throughout Europe in the Middle Ages was the Roman Catholic Church. For the better part of the period the church was the most powerful institution in all of Europe and the only one to span the separate kingdoms. The church was the keeper of knowledge and learning, maintaining books and literacy at a time when most people could not readOr the best article I've read is from sarah woodbury
What it means to be literate is not an absolute standard even now. This was even more true in the Middle Ages when the majority of the population couldnt read at all, a certain percentage could read and not write, and the only way to be literate at the time was if a person could read Latin. Literacy in other languages didnt count.Note this -- By 1500, he estimates the literacy among males in England still did not exceed 10-25%. --> we can extrapolate that to all of Europe and settle on say 15% for all of Northern Europe (the main centres of learning were still in Italy). The fact is that most didn't read the Bible because most (85%) did not know how to read and it didn't really matter as books were not available (no printing press) or reasonably priced (since they were copied by hand they cost more than a few years of labor)
A Companion to Britain in the Later Middle Agesmakes the argument that literacy in England began increasing starting in 1100, after which all the kings were literate in Latin and French, although there was again a difference between reading and writing. By 1500, he estimates the literacy among males still did not exceed 10-25%.
During the early centuries of Christianity, the world of Latin literacy changed from one where a significant percentage of the population was literate and all governmental and business affairs were carried out in writing, to one where written literacy shrank to occupy the enclaves of Christianity which spread like little islands in non-literate barbarian cultures and select writing offices of the new barbarian royalty. These latter were most likely in no way separate from the monasteries, but a specialised extension of their literate functions.