- The grapefruit gets its name from the way it grows in clusters like grapes on a vine.
- The WD in WD-40 stands for Water Displacer.
- The average person laughs 10 times a day.
- Mapping is older than writing.
- 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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