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276 BC - 194 BC

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Eratosthenes of Cyrene (; Greek: Ἐρατοσθένης [eratostʰénɛːs]; c. 276 BC – c. 195/194 BC) was a Greek polymath: a mathematician, geographer, poet, astronomer, and music theorist. He was a man of learning, becoming the chief librarian at the Library of Alexandria. Read more on Wikipedia

Since 2007, the English Wikipedia page of Eratosthenes has received more than 3,127,635 page views. His biography is available in 92 different languages on Wikipedia (up from 90 in 2019). Eratosthenes is the most popular geographer, the most popular biography from Libya and the most popular Libyan Geographer.

Eratosthenes is most famous for measuring the circumference of the Earth by comparing the shadows of two sticks in two different locations.

Memorability Metrics

  • 3.1M

    Page Views (PV)

  • 84.59

    Historical Popularity Index (HPI)

  • 92

    Languages Editions (L)

  • 17.40

    Effective Languages (L*)

  • 3.02

    Coefficient of Variation (CV)

Page views of Eratosthenes by language


Among geographers, Eratosthenes ranks 1 out of 67After him are Strabo, Alexander von Humboldt, Gerardus Mercator, Muhammad al-Idrisi, Piri Reis, Pausanias, Carl Ritter, George Everest, Abraham Ortelius, Martin Waldseemüller, and Ferdinand von Richthofen.

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Among people born in 276 BC, Eratosthenes ranks 1 Among people deceased in 194 BC, Eratosthenes ranks 1

Others Born in 276 BC

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Others Deceased in 194 BC

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In Libya

Among people born in Libya, Eratosthenes ranks 1 out of 64After him are Muammar Gaddafi (1942), Mark the Evangelist (10), Arius (256), Septimius Severus (145), Aristippus (-434), Omar Mukhtar (1858), Callimachus (-310), Idris of Libya (1889), Simon of Cyrene (-100), Pope Victor I (100), and Carneades (-214).


Among geographers born in Libya, Eratosthenes ranks 1