Mars had an oxygen-rich atmosphere around 4 billion years ago
13
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
Your thumb is about the same size as your nose.
124
The average person in their lifetime will spend an estimated 20,160 minutes kissing!
212
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
You forget 90% of your dreams.
256