Time since the start of the Stone Age

Time since the start of the Stone Age (3.4 million y)

/fact/time-since-the-start-of-the-stone-age

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Neat Ratios ...

Time since the start of the Stone Age (3.4 million y)

is 1/4000 of Age of the universe (13.82 billion y)...more
is 2000 x Time since the birth of mathematician Hypatia (1,674 y)...more
is 4000 x Time since the birth of Fibonacci (854 y)...more
is 10000 x Time since the publication of Isaac Newton's major work, the Principia (337 y)...more

If this was a standard unit ...