Age of earliest mammoth fossils

Age of earliest mammoth fossils (4.8 million y)

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Neat Ratios ...

Age of earliest mammoth fossils (4.8 million y)

is 1/100 of Time since the end of the Cambrian geologic period (485 million y)...more
is 1/100 of Time since the emergence of earliest insects (480 million y)...more
is 2000 x Time since the birth of Aristotle (2,400 y)...more
is 2000 x Time since the birth of Euclid (2,381 y)...more
is 2000 x Time since the birth of Alexander the Great (2,376 y)...more
is 2500 x Time since start of building of the Colosseum (1,947 y)...more
is 2500 x Time since the peak of Roman Empire (1,900 y)...more
is 4000 x Time since the birth of al-Kindi (1,220 y)...more
is 5000 x Time since the birth of Omar Khayyam (973 y)...more
is 10000 x Time since the publication of Copernicus's sun-centred model of the solar system (478 y)...more

If this was a standard unit ...