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Library Of Alexandria - Elizabeth Cox

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    2,300 years ago,
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    the rulers of Alexandria
    set out to fulfill
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    one of humanity’s most audacious goals:
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    to collect all the knowledge in the world
    under one roof.
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    In its prime,
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    the Library of Alexandria housed
    an unprecedented number of scrolls
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    and attracted some of
    the Greek world’s greatest minds.
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    But by the end of the 5th century CE,
    the great library had vanished.
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    Many believed it was destroyed
    in a catastrophic fire.
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    The truth of the library’s rise
    and fall is much more complex.
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    The idea for the library came
    from Alexander the Great.
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    After establishing himself as a conqueror,
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    the former student of Aristotle
    turned his attention
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    to building an empire of knowledge
    headquartered in his namesake city.
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    He died before construction began,
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    but his successor, Ptolemy I,
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    executed Alexander’s plans
    for a museum and library.
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    Located in the royal district of the city,
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    the Library of Alexandria
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    may have been built
    with grand Hellenistic columns,
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    native Egyptian influences,
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    or a unique blend of the two--there are
    no surviving accounts of its architecture.
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    We do know it had lecture halls,
    classrooms, and, of course, shelves.
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    As soon as the building was complete,
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    Ptolemy I began to fill it with
    primarily Greek and Egyptian scrolls.
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    He invited scholars to live
    and study in Alexandria at his expense.
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    The library grew as they contributed
    their own manuscripts,
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    but the rulers of Alexandria still wanted
    a copy of every book in the world.
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    Luckily, Alexandria was a hub for ships
    traveling through the Mediterranean.
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    Ptolemy III instituted a policy requiring
    any ship that docked in Alexandria
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    to turn over its books for copying.
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    Once the Library’s scribes
    had duplicated the texts,
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    they kept the originals
    and sent the copies back to the ships.
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    Hired book hunters also scoured
    the Mediterranean
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    in search of new texts,
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    and the rulers of Alexandria attempted
    to quash rivals
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    by ending all exports of the Egyptian
    papyrus used to make scrolls.
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    These efforts brought hundreds
    of thousands of books to Alexandria.
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    As the library grew,
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    it became possible to find information
    on more subjects than ever before,
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    but also much more difficult to find
    information on any specific subject.
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    Luckily, a scholar named Callimachus of
    Cyrene set to work on a solution,
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    creating the pinakes,
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    a 120-volume catalog
    of the library’s contents,
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    the first of its kind.
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    Using the pinakes,
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    others were able to navigate
    the Library’s swelling collection.
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    They made some astounding discoveries.
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    1,600 years before Columbus set sail,
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    Eratosthenes not only realized
    the earth was round,
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    but calculated its circumference
    and diameter
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    within a few miles of their actual size.
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    Heron of Alexandria created
    the world’s first steam engine
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    over a thousand years before
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    it was finally reinvented during
    the Industrial Revolution.
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    For about 300 years after its founding
    in 283 BCE, the library thrived.
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    But then, in 48 BCE, Julius Caesar
    laid siege to Alexandria
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    and set the ships in the harbor on fire.
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    For years, scholars believed the library
    burned as the blaze spread into the city.
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    It's possible the fire destroyed
    part of the sprawling collection,
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    but we know from ancient writings
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    that scholars continued to visit
    the library for centuries after the siege.
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    Ultimately, the library slowly disappeared
    as the city changed from Greek,
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    to Roman,
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    Christian,
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    and eventually Muslim hands.
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    Each new set of rulers viewed
    its contents as a threat
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    rather than a source of pride.
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    In 415 CE,
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    the Christian rulers even had
    a mathematician named Hypatia
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    murdered for studying
    the library’s ancient Greek texts,
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    which they viewed as blasphemous.
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    Though the Library of Alexandria
    and its countless texts are long gone,
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    we’re still grappling
    with the best ways to collect,
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    access,
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    and preserve our knowledge.
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    There’s more information available today
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    and more advanced technology
    to preserve it,
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    though we can’t know for sure
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    that our digital archives
    will be more resistant to destruction
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    than Alexandria’s ink and paper scrolls.
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    And even if our reservoirs of knowledge
    are physically secure,
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    they will still have to resist
    the more insidious forces
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    that tore the library apart:
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    fear of knowledge,
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    and the arrogant belief
    that the past is obsolete.
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    The difference is that, this time,
    we know what to prepare for.
Title:
Library Of Alexandria - Elizabeth Cox
Speaker:
Elizabeth Cox
Description:

View full lesson: https://ed.ted.com/lessons/what-really-happened-to-the-library-of-alexandria-elizabeth-cox

2,300 years ago, the rulers of Alexandria set out to fulfill a very audacious goal: to collect all the knowledge in the world under one roof. In its prime, the Library of Alexandria housed an unprecedented number of scrolls and attracted some of the Greek world’s greatest minds. But by the end of the 5th century CE, it had vanished. Elizabeth Cox details the rise and fall of this great building.

Lesson by Elizabeth Cox, directed by Inna Phillimore.

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Video Language:
English
Team:
closed TED
Project:
TED-Ed
Duration:
04:59

English subtitles

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