If Time since the publication of Darwin's On the Origin of Species (165 y) was a standard unit ...
Age of oldest musical instrument (42,000 y)...more would be 250 x Time since the publication of Darwin's On the Origin of Species
Age of the earliest city (6,500 y)...more would be 40 x Time since the publication of Darwin's On the Origin of Species
Time since the birth of mathematician Hypatia (1,674 y)...more would be 10 x Time since the publication of Darwin's On the Origin of Species
Time since the death of Shakespeare (406 y)...more would be 2.5 x Time since the publication of Darwin's On the Origin of Species
Time since the publication of Dickens's Tale of Two Cities (165 y)...more would be about as big as Time since the publication of Darwin's On the Origin of Species
Period of Neptune's orbit (164.8 y)...more would be about as big as Time since the publication of Darwin's On the Origin of Species
Period of Uranus's orbit (84 y)...more would be 1/2 of Time since the publication of Darwin's On the Origin of Species
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Is That a Big Number? - the book - is now available from all good booksellers.
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