- All the people on Earth could fit into a 1 km cube.
- Mosquitoes dislike citronella because it irritates their feet.
- 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..
- The oldest word in the English language is 'town'.
- After Hawaii, New York is the state surrounded by the most water.
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