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 (2,120 y)...more
is 20 x Time since the birth of Cleopatra (2,090 y)...more
is 25 x Time since the birth of mathematician Hypatia (1,674 y)...more
is 50 x Time since the birth of Fibonacci (854 y)...more
is 100 x Time since Shakespeare's play Hamlet was written (425 y)...more
is 100 x Time since the birth of Pierre de Fermat (423 y)...more
is 200 x Time since the birth of Dickens (212 y)...more
is 200 x Time since the birth of Ada Lovelace (209 y)...more
is 200 x Time since the birth of mathematician Maria Gaetana Agnesi (206 y)...more
is 250 x Time since the publication of Dickens's Tale of Two Cities (165 y)...more
is 250 x Time since the publication of Darwin's On the Origin of Species (165 y)...more
is 250 x Period of Neptune's orbit (164.8 y)...more
is 400 x Time since the birth of chemist Rosalind Franklin (104 y)...more
is 500 x Period of Uranus's orbit (84 y)...more

If this was a standard unit ...