Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Iceland has been so culturally isolated through history since the Vikings, that compared to other Scandinavian counties, people who speak Icelandic can still read the old Norsk sagas.
4
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
Only about 2% of the world population has green eyes.
36
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
The University of Oxford (teaching since 1096) predates the Aztec empire (1428 - 1521).
14