If Time since the publication of Dickens's Tale of Two Cities (165 y) was a standard unit ...

Age of oldest musical instrument (42,000 y)...more would be 250 x Time since the publication of Dickens's Tale of Two Cities

Age of the earliest city (6,500 y)...more would be 40 x Time since the publication of Dickens's Tale of Two Cities

Time since the birth of mathematician Hypatia (1,674 y)...more would be 10 x Time since the publication of Dickens's Tale of Two Cities

Time since the death of Shakespeare (406 y)...more would be 2.5 x Time since the publication of Dickens's Tale of Two Cities

Time since the publication of Darwin's On the Origin of Species (165 y)...more would be about as big as Time since the publication of Dickens's Tale of Two Cities

Period of Neptune's orbit (164.8 y)...more would be about as big as Time since the publication of Dickens's Tale of Two Cities

Period of Uranus's orbit (84 y)...more would be 1/2 of Time since the publication of Dickens's Tale of Two Cities