- Green tea has 50% more vitamin C than black tea.
- A rat can tread water for 3 days.
- Swiss mathematician Leonhard Euler was probably the most influential mathematician of the 18th century, making discoveries in graph theory and introducing many modern mathematical words and notations among other things..
- Europe is the only continent without a desert.
- The blueprints for the Eiffel Tower covered more than 14,000 square feet of drafting paper.
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