- The first taxi service began in New York in 1907.
- 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..
- Goldfish can see both infrared and ultraviolet light.
- On average you blink 25,000 a day.
- The winter of 1932 was so cold that Niagara Falls froze over completely.
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