Time since the publication of Copernicus's sun-centred model of the solar system

Time since the publication of Copernicus's sun-centred model of the solar system (479 y)

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Neat Ratios ...

Time since the publication of Copernicus's sun-centred model of the solar system (479 y)

is 1/10000 of Age of earliest mammoth fossils (4.8 million y)...more
is 1/5 of Time since the birth of Aristotle (2,400 y)...more
is 1/5 of Time since the birth of Euclid (2,382 y)...more
is 1/5 of Time since the birth of Alexander the Great (2,377 y)...more
is 1/4 of Time since start of building of the Colosseum (1,948 y)...more
is 1/4 of Time since the peak of Roman Empire (1,900 y)...more
is 2/5 of Time since the birth of al-Kindi (1,220 y)...more
is 1/2 of Time since the birth of Omar Khayyam (974 y)...more
is 2.5 x Lifespan of Galapagos giant tortoise (190 y)...more
is 4 x Time since first transatlantic wireless communication (121 y)...more
is 5 x Time since Charles Lindbergh first flew across the Atlantic (95 y)...more
is 40 x Period of Jupiter's orbit (11.86 y)...more
is 250 x Period of Mars's orbit (1.88 y)...more

If this was a standard unit ...