Time since the publication of Einstein's theory of Special Relativity

Time since the publication of Einstein's theory of Special Relativity (119 y)

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Time since the publication of Einstein's theory of Special Relativity (119 y)

is 1/250 of Time since first humans in Europe (30,000 y)...more
is 1/250 of Time since extinction of Neanderthals (30,000 y)...more
is 1/250 of Age of earliest sewing needle (30,000 y)...more
is 1/250 of Time since the earliest bread baking (30,000 y)...more
is 1/100 of Time since the end of the Pleistocene geologic epoch (11,700 y)...more
is 1/20 of Time since the birth of Aristotle (2,400 y)...more
is 1/20 of Time since the birth of Euclid (2,384 y)...more
is 1/20 of Time since the birth of Alexander the Great (2,379 y)...more
is 1/5 of Time since invention of the printing press (584 y)...more
is 1/4 of Time since the publication of Copernicus's sun-centred model of the solar system (481 y)...more
is about as big as Time since the birth of computer scientist Grace Hopper (118 y)...more
is 2.5 x Time since Concorde Supersonic Airliner entered service (48 y)...more
is 2.5 x Time since first Apple ][ computer launched (47 y)...more
is 4 x Lifespan of horse (30 y)...more
is 4 x Period of Saturn's orbit (29.5 y)...more
is 10 x Period of Jupiter's orbit (11.86 y)...more

If this was a standard unit ...