- Cars were first started with ignition keys in 1949.
- German mathematician Gottfried Leibniz lived between 1646 and 1716, developing important calculus concepts and mathematical notation practices..
- Archimedes of Syracuse lived around the year 250 BC and among other things, developed a method for determining the volume of objects with irregular shapes..
- Macadamia nuts are toxic to dogs.
- The most popular toothbrush color is blue.
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