- Pearls melt in vinegar.
- Hawaii officially became apart of the US on June 14 1900.
- 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..
- The Earth weighs 6,588,000,000,000,000,000 tons.
- Lightning strikes the Earth 6,000 times every minute.
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