Originally Posted by
Theodarzna
The Founders didn't know a whole lot about history of that era. I know its a great talking point of the Fedora Tippers, but the Medieval European world wasn't really some incredibly backward time. For example Witch Burnings began in the Renaissance, as well as a lot of what we would call strict Biblical fundamentalism. The Library of Alexandria by the time it was finally torched for good, barely existed anymore. People often credit this as some massive destruction but in truth, almost nothing remained of that original Library and what was there was some scientific manuals or anything of particular use.
While the idea that the world would somehow be vastly different if the Great Library had been preserved is a cute one, it has very little basis. Firstly, the size of the Library was greatly exaggerated by ancient writers, with fanciful numbers of the books in it ranging from 400,000 (Seneca) to 700,000 (Gellius). Some modern writers have taken these numbers seriously, but there is no way the Library could have housed anything like this number of books. It is far more likely that its collection numbered in the tens of thousands of scrolls, which still made it the largest library in the ancient world.
But the idea that the loss of the Great Library somehow set back human progress is not based simply on the size of the collection but also on the idea that it was somehow unique and that it contained works not found elsewhere. There is no evidence to support this. As far as we can ascertain, the Library's collection included more or less the same kind of works we find elsewhere in the ancient world. And there is nothing in those works to indicate that the Greeks and Romans were somehow on the verge of some kind of scientific or technological revolution. So the idea that the loss of the Library's collection somehow led to the loss of unique advanced information found nowhere else in the world is pure fantasy.
The third reason this idea is fantasy is that it assumes a very modern and recent connection between speculation/science and technology that didn't exist in the ancient world. With a couple of notable exceptions, Greek and Roman philosophers who did "natural philosophy" (what we call science) rarely made any connection between it and something as practical as technology. Philosophy was for the learned elite, who were usually aristocrats or associated with them. Technology, on the other hand, was a matter for builders, architects, artisans and armourers and other lower class people who got their hands dirty and was not the kind of thing to interest a lofty student of science. Most Greek and Roman era science was done in the form of thought experiments and contemplation of ideas rather than practical empiricism. It was not until the later Medieval Period that we see the first glimmering of practical, experimental science and not until the Sixteenth Century that genuine empirical science made the connection between science and technology fully possible. So the idea that this (supposed) lost unique knowledge in the Great Library would have led to much earlier advances in technology doesn't fit the evidence - ancient science didn't work that way.
There are a number of myths about the Great Library, several of which revolve around its destruction, with various versions of the story being perpetuated with a variety of villains. The almost certainly mythical story about its destruction by the Arabs still gets passed on uncritically in some quarters, but the version that seems most popular is the one that has the Library being destroyed by a Christian mob in 391 AD. This story lends itself nicely to a Whiggish fable about ignorance triumphing over knowledge and is usually told with a warning about how this incident "ushered in the Dark Ages" and is often linked to this popular but nonsensical idea that "we'd have long since colonised Mars if the Library hadn't been destroyed". Edward Gibbon first peddled this version of the story and its been popularised more recently in a garbled version by Carl Sagan in his series Cosmos and by the recent movie Agora.
In fact, there is zero evidence that the daughter library that was housed in the Serapeum, the temple that was destroyed by a Christian mob in 391, was still in existence when this occurred. None of the five accounts of the destruction of the Serapeum mention any library and an earlier description of the Serapeum by Ammianus Marcellinus refers to the library it had housed using the past tense. The Great Library itself seems to have been destroyed centuries earlier anyway, either by a fire caused by Julius Caesar's troops in 47 BC or in another fire which destroyed the entire Bruchreion quarter, where the Library was located, during the sack of the city by Aurelian in 273 AD.
While a vast amount of ancient knowledge has been lost and while copies of many of those lost works would have been held in the Great Library's collection, what has come down to us gives no indication that the Greeks and Romans were on the verge of some kind of scientific revolution. On the contrary, by the time Aurelian was burning the Bruchreion and (probably) the Library, science and learning generally had already been stagnant for some time and the following centuries of civil war in the Roman Empire, economic decline and barbarian invasions led to a further decline. When these pressures led to the collapse of the Western Roman Empire, virtually all intellectual pursuits were abandoned apart from what was preserved by the Church and huge amounts of knowledge was lost.
In the Eastern Empire and in the parts of the east converted to Nestorian Christianity, a great deal of ancient science and knowledge was preserved. These Christian scholars passed it to the Arabs and it then eventually made its way back to back to Europe via Muslim Sicily and Spain where it sparked the great revival of learning in Medieval Europe in the Twelfth Century. So while a great deal was lost, what survived came back into western Europe at the time that saw the rise of the first universities and laid the intellectual foundations of the later Scientific Revolution and its application in technology.
The idea that the loss of the Great Library set back science and technology by centuries is a nice fable, but not a viable historical idea. The Greeks and Romans were not on the verge of a scientific and technological revolution such as the one seen in the early Modern era - that required a number of unique circumstances which were simply not present in the Roman Era. It's a cute story but it's essentially nonsense.
The short rub of it is that Thomas Paine didn't know much about the history he was talking about but was instead engaged in a Whig fable. The Medieval World wasn't really like that.