Time since the birth of Hero of Alexandria

Time since the birth of Hero of Alexandria (2,014 y)

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Time since the birth of Hero of Alexandria (2,014 y)

is 1/25 of Time since first humans in Australia (50,000 y)...more
is 2/5 of Time since building of Stonehenge (5,120 y)...more
is 2/5 of Time since the earliest writing (5,100 y)...more
is 1/2 of Time since earliest wheeled vehicles (4,000 y)...more
is 2 x Time since start of building of Great Zimbabwe (1,000 y)...more
is 5 x Time since the death of Shakespeare (406 y)...more
is 10 x Time since the first iron steamship crossed the English Channel (202 y)...more
is 10 x Time since the first passenger steam railway service (199 y)...more
is 25 x Time since introduction of the first mass-produced helicopter (Sikorsky R-4) (80 y)...more
is 25 x Lifespan of human being (80 y)...more
is 50 x Time since first Apple Macintosh Computer launched (40 y)...more
is 200 x Time since first Tesla Model S launched (10 y)...more
is 1000 x Lifespan of rat (2 y)...more
is 2000 x Period of Earth's orbit (1 y)...more

If this was a standard unit ...