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What is the '?'?

Author: The Math Guru

Correct answers: 65

The first user who solved this task is Sanja Šabović.

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Gertrude Caton-Thompson

Born 1 Feb 1889; died 18 Apr 1985 at age 96.English archaeologist who distinguished two prehistoric cultures in the Al-Fayyum depression of Upper Egypt, the older dating to about 5000 BC and the younger to about 4500 BC.

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