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Democritus | Biography & Facts | Britannica
Democritus - Wikipedia
Democritus (Stanford Encyclopedia of Philosophy)
Democritus - World History Encyclopedia
Democritus - Biography, Facts and Pictures - Famous Scientists
Democritus summary | Britannica
Biography of Democritus, Greek Philosopher - ThoughtCo
Democritus | Encyclopedia.com
Democritus - Classics - Oxford Bibliographies
Who was Democritus? | Britannica