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  - Samuel Bradford
 
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  The first and simple algorithm (although at the time it was not called that) applied in the 1940's.
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  1945 - članak " As we may think " - Vannevar Bush.
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  1950 - Division of Information and Intelligent Systems ( IIS ).
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  Mid - 1950's ”information retrieval”
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  Early 1950's Mortimer Taube ( 1910 - 1965 ), another IR pioneer and entrepreneur, founded a company named Documentation Inc.
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  1950's - Cranfield tests.
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  1950's - Bibliometric.
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  1952 - All-Union Scientific and Technical Information Institute of the Academy of Sciences of the USSR
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  1955 - Starting the Center for Documentation and Communication Research.
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  1959 automatic KWIC indexing.
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  1960's computer science joined the efforts in a big way.
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  Modern IR came about in the 1960's.
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  1960's - SMART.
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  1960's - Scientometrics.
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  1960 Eugene Garfield Institute for Scientific Information (ISI).
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  1964 - ISI started publishing Science Citation Index.
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  1970's - Nicholas Belkin “anomalous state of knowledge” (ASK).
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  1980's. - information need.
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  1980’s - Kuhlthau Information Search Model.
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  1980's - Ellis’s Model of Information - Seeking Behavior.
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  1990's - WWW
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  1990's - Informetrics.
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  1990's – Webometrics.
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  TREC - 1992.
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  2000 - E - metrics.
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  2005 - i - School Caucus was formed.
