Time since the first fixed wing scheduled air service

Time since the first fixed wing scheduled air service (110 y)

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Time since the first fixed wing scheduled air service (110 y)

is 1/1000 of Time since the start of the last glacial period (Ice Age) (110,000 y)...more
is 1/250 of Time since first domestication of dogs (27,000 y)...more
is 1/50 of Time since first domestication of horses (5,500 y)...more
is 1/5 of Time since the birth of Albrecht Durer (553 y)...more
is 1/5 of Time since the birth of Copernicus (550 y)...more
is 1/5 of Time since the Caxton's first edition of Chaucer's The Canterbury Tales (548 y)...more
is about as big as Time since the birth of Turing (112 y)...more
is 2 x Time since the first human walked on the moon (55 y)...more
is 2 x Time since first Boeing 747 entering service (54 y)...more

If this was a standard unit ...