Coins usually survive in circulation for about 30 years.
66
American school children rank 25th in math and 21st in science out of the top 30 developed countries, but ranked 1st in confidence that they outperformed everyone else.
7
Paul McCartney dreamed the melody of "Yesterday" one night and immediately wrote the music the next morning. He then looked around for a month to make sure that he didn't subconsciously plagiarize it from somebody else.
11
There are pictures of Knights fighting Snails in old Medieval manuscripts - and nobody knows why.
23
Alaska is the only state that can be typed on one row of keys on a QWERTY keyboard.
147
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
Applying vodka to your face helps tighten your pores and can reduce the risk of acne breakouts.
19
Mars had an oxygen-rich atmosphere around 4 billion years ago
13