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350 BC - 240 BC

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Euclid (; Greek: Εὐκλείδης; fl. 300 BC) was an ancient Greek mathematician active as a geometer and logician. Considered the "father of geometry", he is chiefly known for the Elements treatise, which established the foundations of geometry that largely dominated the field until the early 19th century. His system, now referred to as Euclidean geometry, involved new innovations in combination with a synthesis of theories from earlier Greek mathematicians, including Eudoxus of Cnidus, Hippocrates of Chios, Thales and Theaetetus. Read more on Wikipedia

Since 2007, the English Wikipedia page of Euclid has received more than 5,339,265 page views. His biography is available in 150 different languages on Wikipedia (up from 146 in 2019). Euclid is the 8th most popular mathematician, the 7th most popular biography from Egypt (down from 6th in 2019) and the most popular Egyptian Mathematician.

Euclid is most famous for his work on geometry, which he set out in the book Elements.

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  • 5.3M

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  • 83.48

    Historical Popularity Index (HPI)

  • 150

    Languages Editions (L)

  • 16.91

    Effective Languages (L*)

  • 4.53

    Coefficient of Variation (CV)

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Among mathematicians, Euclid ranks 8 out of 823Before him are Blaise Pascal, Carl Friedrich Gauss, Gottfried Wilhelm Leibniz, Muhammad ibn Musa al-Khwarizmi, Leonhard Euler, and Omar Khayyam. After him are Hypatia, Bertrand Russell, Al-Biruni, Bernhard Riemann, Pierre de Fermat, and Fibonacci.

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Among people born in 350 BC, Euclid ranks 1After him are Cassander, Demetrius of Phalerum, Hipparchia of Maroneia, Megasthenes, Perdiccas III of Macedon, Alexander II of Macedon, Bagoas, Timaeus, Parysatis II, Dicaearchus, and Agis III. Among people deceased in 240 BC, Euclid ranks 1After him are Callimachus, Arcesilaus, Aratus, Zou Yan, and Posidippus.

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In Egypt

Among people born in Egypt, Euclid ranks 7 out of 582Before him are Moses (-1393), Cleopatra (-69), Tutankhamun (-1341), Ptolemy (100), Nefertiti (-1400), and Akhenaten (-1400). After him are Hypatia (350), Yasser Arafat (1929), Hatshepsut (-1507), Catherine of Alexandria (287), Joshua (-1355), and Amenhotep III (-1403).


Among mathematicians born in Egypt, Euclid ranks 1After him are Hypatia (350), Diophantus (201), Hero of Alexandria (10), Ctesibius (-284), Pappus of Alexandria (290), Theon of Alexandria (335), Menelaus of Alexandria (70), Ibn Yunus (950), and Abū Kāmil Shujāʿ ibn Aslam (850).