In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
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 you have 1 billion dollars and spend $1,000 every day, it would take you 2,740 years to go broke.
31
Only about 2% of the world population has green eyes.
36
There are so many kinds of apples that if you ate a new one everyday, it would take over 20 years to try them all.
34
There is a persistent storm in Venezuela that produces lightning 140 to 160 nights a year, 10 hours per day and up to 280 times per hour and has been going since at least the 16th century.
25
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Lurch, a Watusi bull, had the largest horns in the world.
32