The strangers in your dreams are actually people that you've seen in real life.
50
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
If Earth's history was condensed into twenty-four hours, life would've appeared at around 4am, land plants at 10:24pm, dinosaur extinction at 11:41pm, and human history would’ve began at 11:58:43pm.
21
You forget 90% of your dreams.
256
A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140
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
The University of Oxford (teaching since 1096) predates the Aztec empire (1428 - 1521).
14