- Mathematical developments increased rapidly around the time of the Italian Renaissance in the 16th century and continued through the scientific revolution of the 17th and 18th centuries, becoming increasingly abstract in the 19th and 20th centuries.
- The longest one syllable word in the English language is 'screeched'.
- A person produces enough saliva to fill 2 average size swimming pools during their lifetime.
- The word 'geometry' comes from the Greek words 'geo', meaning earth, and 'metria', meaning measure.
- It takes 110 silkworm cocoons to make an average tie.
- The ice cream cone was introduced in 1904.
- Sloths can hold their breath longer than dolphins can.
- There are over 225,000 trees in New York's Central Park.
- Emus can't walk backwards.
- Glass balls can bounce higher than rubber ones.
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