Time since the earliest primates

Time since the earliest primates (75 million y)

/fact/time-since-the-earliest-primates

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Neat Ratios ...

Time since the earliest primates (75 million y)

is 1/4 of Time since the end of the Carboniferous geologic period (299 million y)...more
is 2500 x Time since first humans in Europe (30,000 y)...more
is 2500 x Time since extinction of Neanderthals (30,000 y)...more
is 2500 x Age of earliest sewing needle (30,000 y)...more
is 2500 x Time since the earliest bread baking (30,000 y)...more
is 5000 x Time since first humans in Americas (15,000 y)...more

If this was a standard unit ...