- The first aluminum drink can was introduced in 1964.
- The Eiffel Tower is over 300m (984 ft) tall.
- The average porcupine has 30,000 spikes.
- Rhinoceros have 3 toes on each foot.
- The Hindu-Arabic numeral system began developing as early as the 1st century with a full system being established around the 9th century, forming the basis of the numerical digits 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 that we use today..
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