Duration of Dutch Empire

Duration of Dutch Empire (407 y)

/fact/duration-of-dutch-empire

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Neat Ratios ...

Duration of Dutch Empire (407 y)

is 2.5 x Period of Neptune's orbit (164.8 y)...more
is 5 x Length of the Punic Wars (Rome v Carthage) (82 y)...more
is 5 x Length of reign of King Sobhuza II of Swaziland (82 y)...more
is 5 x Lifespan of human being (80 y)...more
is 200 x Lifespan of rat (2 y)...more
is 400 x Period of Earth's orbit (1 y)...more

If this was a standard unit ...