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Euclid | Biography, Contributions, Geometry, & Facts | Britannica
Euclid - Wikipedia
Euclid - World History Encyclopedia
Euclidean geometry | Definition, Axioms, & Postulates | Britannica
Euclid - Geometry, Elements, Mathematics | Britannica
Euclid's Elements - Wikipedia
Euclid (325 BC - 265 BC) - Biography - MacTutor History of …
Euclid - Biography, Facts and Pictures - Famous Scientists
Euclidean geometry - Wikipedia
Euclid biography | Biography Online