Time since first domestication of dogs

Time since first domestication of dogs (27,000 y)

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Time since first domestication of dogs (27,000 y)

is 1/4 of Time since the start of the last glacial period (Ice Age) (110,000 y)...more
is 5 x Time since first domestication of horses (5,500 y)...more
is 5 x Time since the start of the Bronze Age (5,300 y)...more
is 50 x Time since the birth of Copernicus (550 y)...more
is 50 x Time since the Caxton's first edition of Chaucer's The Canterbury Tales (548 y)...more
is 250 x Time since the first fixed wing scheduled air service (110 y)...more
is 500 x Time since the first human walked on the moon (55 y)...more
is 500 x Time since first Boeing 747 entering service (54 y)...more
is 500 x Time since first email sent (53 y)...more
is 500 x Time since the launch of Intel's first microprocessor, the 4004 (53 y)...more

If this was a standard unit ...