If Time since Concorde Supersonic Airliner entered service (48 y) was a standard unit ...
Time since the birth of Aristotle (2,400 y)...more would be 50 x Time since Concorde Supersonic Airliner entered service
Time since the birth of Euclid (2,384 y)...more would be 50 x Time since Concorde Supersonic Airliner entered service
Time since the birth of Alexander the Great (2,379 y)...more would be 50 x Time since Concorde Supersonic Airliner entered service
Time since start of building of the Colosseum (1,950 y)...more would be 40 x Time since Concorde Supersonic Airliner entered service
Time since the peak of Roman Empire (1,900 y)...more would be 40 x Time since Concorde Supersonic Airliner entered service
Time since the birth of al-Kindi (1,220 y)...more would be 25 x Time since Concorde Supersonic Airliner entered service
Time since the birth of Omar Khayyam (976 y)...more would be 20 x Time since Concorde Supersonic Airliner entered service
Time since the publication of Copernicus's sun-centred model of the solar system (481 y)...more would be 10 x Time since Concorde Supersonic Airliner entered service
Lifespan of Galapagos giant tortoise (190 y)...more would be 4 x Time since Concorde Supersonic Airliner entered service
Time since the publication of Einstein's theory of Special Relativity (119 y)...more would be 2.5 x Time since Concorde Supersonic Airliner entered service
Time since the birth of computer scientist Grace Hopper (118 y)...more would be 2.5 x Time since Concorde Supersonic Airliner entered service
Time since Charles Lindbergh first flew across the Atlantic (97 y)...more would be 2 x Time since Concorde Supersonic Airliner entered service
Period of Jupiter's orbit (11.86 y)...more would be 1/4 of Time since Concorde Supersonic Airliner entered service
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