Mysteries of vernacular: Zero - Jessica Oreck and Rachael Teel

84,119 views ・ 2013-08-01

TED-Ed


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Mysteries of vernacular:
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Zero,
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a number that indicates an absence of units.
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In order to understand the genesis of the word zero,
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we must begin with the very origins of counting.
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The earliest known archaeological evidence of counting
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dates back approximately 37,000 years
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and is merely a series of notches in bone.
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It wasn't until around 2500 B.C.
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that the first written number system
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began to take form in Mesopotamia,
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using the units one, ten, and sixty.
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Fast forward another three millennia
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to seventh century India
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where mathematicians used a single dot
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to distinguish between numbers
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like 25, 205, and 250.
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Employed as both a placeholder and a number,
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this all-powerful dot eventually morphed
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into the symbol we know today.
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The word zero comes from the Arabic safira,
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whose literal translation is empty.
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Passing through Italian as zefiro,
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zero came into English in the seventeenth century.
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A second descendant of the Arabic root
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was adopted into English through old French
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as the word cipher.
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Originally sharing the meaning empty with zero,
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cipher later came to describe a code,
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as early codes often used complicated substitutions
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between letters and numbers.
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From this shared empty origin,
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zero continues to represent the number
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that represents nothing.
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