If Time since the birth of Alexander the Great (2,379 y) was a standard unit ...

Age of earliest mammoth fossils (4.8 million y)...more would be 2000 x Time since the birth of Alexander the Great

Time since the end of the Pleistocene geologic epoch (11,700 y)...more would be 5 x Time since the birth of Alexander the Great

Time since the birth of Aristotle (2,400 y)...more would be about as big as Time since the birth of Alexander the Great

Time since the birth of Euclid (2,384 y)...more would be about as big as Time since the birth of Alexander the Great

Time since invention of the printing press (584 y)...more would be 1/4 of Time since the birth of Alexander the Great

Time since the publication of Copernicus's sun-centred model of the solar system (481 y)...more would be 1/5 of Time since the birth of Alexander the Great

Time since the publication of Einstein's theory of Special Relativity (119 y)...more would be 1/20 of Time since the birth of Alexander the Great

Time since the birth of computer scientist Grace Hopper (118 y)...more would be 1/20 of Time since the birth of Alexander the Great

Time since Charles Lindbergh first flew across the Atlantic (97 y)...more would be 1/25 of Time since the birth of Alexander the Great

Time since Concorde Supersonic Airliner entered service (48 y)...more would be 1/50 of Time since the birth of Alexander the Great

Time since first Apple ][ computer launched (47 y)...more would be 1/50 of Time since the birth of Alexander the Great

Period of Jupiter's orbit (11.86 y)...more would be 1/200 of Time since the birth of Alexander the Great

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