- Mount Everest is 8.9km (5.5 miles) high.
- 111,111,111 x 111,111,111 = 12,345,678,987,654,321.
- It takes 5 years for an oyster to produce a medium sized pearl.
- A giraffe can go longer without water than a camel.
- 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..
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