This dimension sorts algorithms by their basic category, sorting, searching, graph or numerical. Wikipedia defines an algorithm as "any well-defined set of instructions that when followed terminates after a finite number of steps that comprise a solution to a given computational problem." Browsing by category keeps algorithms solving the same kind of problem grouped together.
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Era of Emergence Category
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1. Wikipedia: Cryptography
WikipediaCryptography, History section, earliest-use sentenceQuote, Cryptography, History section, earliest-use sentence
The earliest known use of cryptography is some carved ciphertext on stone in Egypt (c. 1900 BCE), but this may have been done for the amusement of literate observers rather than as a way of concealing information.
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