Thursday, August 6, 2020

The Map of Knowledge: A Thousand-Year History of How Classical Ideas Were Lost and Found by Violet Moller



Whirlwind tour through a millennium of scholarship
The intellectual foundations of Western civilization were laid by the philosophers and scholars of ancient Greece. The original scrolls that documented their words of wisdom have long since disintegrated, so the earliest surviving manuscripts of Greek texts are copies of copies. The fact that any of these writings have survived to the present day is rather amazing, and the story of how they survived is fascinating. In her 2019 book The Map of Knowledge, historian Violet Moller gives credit where it’s due to the scribes, translators, scholars, and collectors who kept this knowledge alive through the Dark Ages. Moller covers roughly a thousand years of history, circa 500 to 1500, from the decline of the Western Roman Empire to the birth of the printing press and rise of the Renaissance. In telling this epic story, Moller organizes her narrative around seven cities—Alexandria, Baghdad, Córdoba, Toledo, Salerno, Palermo, and Venice—each of which successively supplanted its predecessor as the Western world’s leading center of books and learning.

To narrow down what would otherwise be a huge and ungainly study, Moller focuses on the works of three scholars who were at the apex of their respective fields: Euclid (mathematics), Ptolemy (astronomy), and Galen (medicine). The prolific Galen alone is responsible for roughly half of the extant writings from ancient Greece. Moller not only charts the history of ideas but also the world events and political figures that helped foster those ideas. The book highlights emperors and kings who patronized scholars and established legendary centers of learning, such as the Great Library of Alexandria, the House of Wisdom in Baghdad, and the Schola Medica in Salerno. The chapters on Baghdad and Córdoba are of particular interest because they highlight the contributions of Arab and Muslim scholars and scientists whose invaluable contributions to Western civilization are little known to most American readers.

With so much geographical ground and temporal scope to cover, Moller can only provide a whirlwind tour of these thousand years. Some key characters are granted extensive biographical sketches, but often an important figure will only be mentioned in a sentence or two before the narrative must rush on to the next succeeding stage of scientific enlightenment. Nevertheless, the reader is introduced to many fascinating lesser-known figures, such as al-Khwarizmi, the brilliant Persian mathematician who invented algebra; Gerard of Cremona, the hardest working translator in medieval Toledo; Roger II, the Sicilian king who transformed Palermo into an intellectual mecca; and Erhard Ratdolt, the pioneering book printer whose work rivaled that of the more famous Aldus Manutius.

Intended for general readers, this book is very clearly written without any challenging academic jargon, and explanatory footnotes spell out some very elementary concepts for those unfamiliar with ancient or medieval history. Even so, the very nature of the subject and Moller’s vast breadth of scope demands a confusing tangle of detail that may very well prove exhausting to the general history buff. One really has to be an enthusiast of rare books and their history to appreciate The Map of Knowledge. Such bibliophiles, however may be unsatisfied by the briskness with which Moller rushes through these thousand years. While novice readers might find it hard to see the forest for the trees, more knowledgeable readers will wish the tour bus would slow down a bit so they could enjoy the scenery.

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