Is That A Big Number?

If Time since the birth of Julius Caesar (2,120 y) was a standard unit ...

Age of oldest musical instrument (42,000 y)...more would be 20 x Time since the birth of Julius Caesar

Time since first domestication of cattle (10,500 y)...more would be 5 x Time since the birth of Julius Caesar

Time since first domestication of cats (10,500 y)...more would be 5 x Time since the birth of Julius Caesar

Time since the start of the Bronze Age (5,300 y)...more would be 2.5 x Time since the birth of Julius Caesar

Time since the birth of Cleopatra (2,090 y)...more would be about as big as Time since the birth of Julius Caesar

Time since the birth of Fibonacci (852 y)...more would be 2/5 of Time since the birth of Julius Caesar

Time since Shakespeare's play Hamlet was written (423 y)...more would be 1/5 of Time since the birth of Julius Caesar

Time since the birth of Pierre de Fermat (421 y)...more would be 1/5 of Time since the birth of Julius Caesar

Time since the birth of Darwin (213 y)...more would be 1/10 of Time since the birth of Julius Caesar

Time since the birth of Dickens (210 y)...more would be 1/10 of Time since the birth of Julius Caesar

Time since the first fixed wing scheduled air service (108 y)...more would be 1/20 of Time since the birth of Julius Caesar

Time since the first Volkswagen Beetle produced (84 y)...more would be 1/25 of Time since the birth of Julius Caesar

Period of Uranus's orbit (84 y)...more would be 1/25 of Time since the birth of Julius Caesar

Time since the first human walked on the moon (53 y)...more would be 1/40 of Time since the birth of Julius Caesar

Time since first Boeing 747 entering service (52 y)...more would be 1/40 of Time since the birth of Julius Caesar

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