The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
You forget 90% of your dreams.
256
If you have 1 billion dollars and spend $1,000 every day, it would take you 2,740 years to go broke.
31
The average person in their lifetime will spend an estimated 20,160 minutes kissing!
212
There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
11
Only about 2% of the world population has green eyes.
36
Your thumb is about the same size as your nose.
124