In 1908 the Imperial Russian Olympic Team arrived in London 12 days too late for the games because they were not using the Gregorian calendar yet.
The world’s oldest calendar is 10,000 years old and is made up of 12 pits that appear to mimic moon phases.
The Native North American population went from an estimated 12 million in 1500 to barely 237,000 in 1900.
The first flight of the Wright brothers lasted 12 seconds and 120 ft (36.5 m): shorter than the wingspan of a Boeing 747.
8 of the 12 host cities for the 2014 FIFA World Cup in Brazil are among the 50 most violent cities in the world.
Astronomer and renowned eclipse chaser J. W. Campbell traveled the world for 50 years trying to see 12 different eclipses. He ran into overcast skies every time.