- The dot on top of the letter 'i' is called a tittle.
- Polar bears can smell a seal from 20 miles away.
- Lightning strikes the Earth 6,000 times every minute.
- 1 square inch of human skin contains 625 sweat glands.
- John Kellogg invented corn flakes.
- The equals sign (=) was invented in 1557 by a Welsh mathematician named Robert Recorde.
- Finland has the largest number of islands in the world (over 179,550).
- Gorillas sleep 14 hours a day.
- The Hindu-Arabic numeral system began developing as early as the 1st century with a full system being established around the 9th century, forming the basis of the numerical digits 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 that we use today.
- Green tea has 50% more vitamin C than black tea.
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