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While there were still mammoths on the globe, the pyramids of Giza were being erected.
According to scientists, all of the pyramids were erected between the 26th and 23rd centuries BC. Mammoths first arose approximately 1.6 million years ago and were extinct in the 10th century BC. This indicates that when Cheops was ecstatic about a new pyramid named after him, enormous beasts were terrorizing our forefather's thousands of kilometers distant.