- The equals sign (=) was invented in 1557 by a Welsh mathematician named Robert Recorde..
- Cats have over 100 vocal chords.
- A Greek mathematician named Euclid who lived around the year 300 BC is often referred to as the 'Father of Geometry' for his amazing geometry works that included the influential 'Elements', which remained the main textbook for teaching mathematics until around the early 20th century..
- The most commonly used word in English conversation is 'I'.
- There are over 690 known species of bats.
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