Age of oldest musical instrument

Age of oldest musical instrument (42,000 y)

/fact/age-of-oldest-musical-instrument

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Neat Ratios ...

Age of oldest musical instrument (42,000 y)

is 1/10000 of Time since the end of the Silurian geologic period (419 million y)...more
is 4 x Time since first domestication of cattle (10,500 y)...more
is 4 x Time since first domestication of cats (10,500 y)...more
is 20 x Time since the birth of Julius Caesar (2,119 y)...more
is 20 x Time since the birth of Cleopatra (2,088 y)...more
is 25 x Time since the birth of mathematician Hypatia (1,670 y)...more
is 50 x Time since the birth of Fibonacci (850 y)...more
is 100 x Time since Shakespeare's play Hamlet was written (421 y)...more
is 100 x Time since the birth of Pierre de Fermat (419 y)...more
is 200 x Time since the birth of Darwin (211 y)...more
is 200 x Time since the birth of Dickens (208 y)...more
is 250 x Period of Neptune's orbit (164.8 y)...more
is 400 x Time since the first fixed wing scheduled air service (106 y)...more
is 500 x Period of Uranus's orbit (84 y)...more

If this was a standard unit ...