Age of oldest wooden wheel

Age of oldest wooden wheel (5,150 y)

/fact/age-of-oldest-wooden-wheel

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Neat Ratios ...

Age of oldest wooden wheel (5,150 y)

is 1/500 of Age of earliest stone hand axe (2.6 million y)...more
is 1/500 of Time since the end of the Neogene geologic period (2.58 million y)...more
is 1/2 of Time since first domestication of cattle (10,500 y)...more
is 1/2 of Time since first domestication of cats (10,500 y)...more
is about as big as Time since building of Stonehenge (5,120 y)...more
is about as big as Time since the earliest writing (5,100 y)...more
is 2 x Time since the birth of Pythagoras (2,594 y)...more
is 2.5 x Time since the birth of Cleopatra (2,090 y)...more
is 20 x Time since the birth of Joseph Fourier (256 y)...more
is 25 x Time since the birth of Ada Lovelace (209 y)...more
is 25 x Time since the birth of mathematician Maria Gaetana Agnesi (206 y)...more
is 25 x Time since the first iron steamship crossed the English Channel (202 y)...more
is 50 x Time since the birth of chemist Rosalind Franklin (104 y)...more

If this was a standard unit ...