350 BC - 240 BC

Photo of Euclid

Icon of person Euclid

Euclid (; Ancient Greek: Εὐκλείδης – Eukleídēs, pronounced [eu̯.kleː.dɛːs]; fl. 300 BC), sometimes called Euclid of Alexandria to distinguish him from Euclid of Megara, was a Greek mathematician, often referred to as the "founder of geometry" or the "father of geometry". He was active in Alexandria during the reign of Ptolemy I (323–283 BC). Read more on Wikipedia

Since 2007, the English Wikipedia page of Euclid has received more than 4,542,349 page views. His biography is available in 146 different languages on Wikipedia (up from 144 in 2019). Euclid is the 8th most popular mathematician (down from 5th in 2019), the 6th most popular biography from Egypt (down from 4th 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.

Memorability Metrics

  • 4.5M

    Page Views (PV)

  • 87.03

    Historical Popularity Index (HPI)

  • 146

    Languages Editions (L)

  • 15.87

    Effective Languages (L*)

  • 4.40

    Coefficient of Variation (CV)

Page views of Euclids by language


Among mathematicians, Euclid ranks 8 out of 828Before him are Blaise Pascal, Carl Friedrich Gauss, Gottfried Wilhelm Leibniz, Leonhard Euler, Omar Khayyam, and Muhammad ibn Musa al-Khwarizmi. After him are Hypatia, Bertrand Russell, Pierre de Fermat, Fibonacci, Bernhard Riemann, and Al-Biruni.

Most Popular Mathematicians in Wikipedia

Go to all Rankings


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

Others Born in 350 BC

Go to all Rankings

Others Deceased in 240 BC

Go to all Rankings

In Egypt

Among people born in Egypt, Euclid ranks 6 out of 520Before him are Moses (-1393), Tutankhamun (-1341), Nefertiti (-1400), Ptolemy (100), and Akhenaten (-1400). After him are Hypatia (350), Cleopatra (-69), Yasser Arafat (1929), Hatshepsut (-1507), Joshua (-1355), and Origen (185).


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