- Hilton was the first international hotel chain.
- England's Stonehenge is over 5,000 years old.
- Kangaroos can not walk backwards.
- Useful life of a modern toilet is 50 years.
- 'orology' is the study of mountains.
- Your most active muscles are in your eye.
- Giraffes and rats can last longer without water than camels.
- A pearl can be dissolved by vinegar.
- The bullfrog is the only animal that never sleeps.
- The numerical digits we use today such as 1, 2 and 3 are based on the Hindu-Arabic numeral system developed over 1000 years ago.
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