Time since the first modern humans

Time since the first modern humans (250,000 y)

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Neat Ratios ...

Time since the first modern humans (250,000 y)

is 1/1000 of Time since the end of the Permian geologic period (252 million y)...more
is 1/500 of Time since the emergence of flowering plants (125 million y)...more
is 1/250 of Length of one Alautun, longest unit in Mayan calendar (63.1 million y)...more
is 5 x Time since first humans in Australia (50,000 y)...more
is 100 x Time since the birth of Socrates (2,490 y)...more
is 100 x Time since start of building of the Parthenon (2,466 y)...more
is 200 x Time since the birth of al-Khwarizmi (1,244 y)...more
is 400 x Time since the birth of Toscanelli (625 y)...more
is 1000 x Time since the birth of Joseph Fourier (254 y)...more
is 1000 x Period of Pluto's orbit (248 y)...more
is 1000 x Time since birth of Sophie Germain (246 y)...more
is 2000 x Time since birth of M. C. Escher (124 y)...more
is 10000 x One average human generation (25 y)...more

If this was a standard unit ...