The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
The 409 escalators in the London subway cover a distance every week which is approximately equivalent to several trips around the globe!
94
If you have 1 billion dollars and spend $1,000 every day, it would take you 2,740 years to go broke.
31
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
The largest breed of rabbit is the Flemish Giant.
65
A cow produces around 200,000 glasses of milk in her lifetime.
373