Is That A Big Number?

If Time since first domestication of dogs (27,000 y) was a standard unit ...

Time since the start of the last glacial period (Ice Age) (110,000 y)...more would be 4 x Time since first domestication of dogs

Time since first domestication of horses (5,500 y)...more would be 1/5 of Time since first domestication of dogs

Time since the start of the Bronze Age (5,300 y)...more would be 1/5 of Time since first domestication of dogs

Time since the birth of Copernicus (550 y)...more would be 1/50 of Time since first domestication of dogs

Time since the Caxton's first edition of Chaucer's The Canterbury Tales (548 y)...more would be 1/50 of Time since first domestication of dogs

Time since the first fixed wing scheduled air service (110 y)...more would be 1/250 of Time since first domestication of dogs

Time since the first human walked on the moon (55 y)...more would be 1/500 of Time since first domestication of dogs

Time since first Boeing 747 entering service (54 y)...more would be 1/500 of Time since first domestication of dogs

Time since first email sent (53 y)...more would be 1/500 of Time since first domestication of dogs

Time since the launch of Intel's first microprocessor, the 4004 (53 y)...more would be 1/500 of Time since first domestication of dogs

Yes, there's now a book based on these numbers. Oxford University Press: July 2018.