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When was Thucydides born?

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The exact birth date of the Greek historian Thucydides is not known. It is generally estimated that he was born no later than 460 BCE, though he may have been born a few years earlier.12

This estimation is based on his own accounts in his History of the Peloponnesian War, where he notes that he was old enough at the start of the war in 431 BCE to recognize its significance and begin documenting it. Furthermore, he was certainly over the age of 30 when he was elected as a stratēgos in 424 BCE.1