Napoleon constructed his battle plans in a sandbox.
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The first coast-to-coast telephone line was established in 1914.
33
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
Ancient Romans at one time used human urine as an ingredient in their toothpaste.
37
Originally, Du Pont, Inc. was a tiny gun powder mill in New Jersey.
20
In 1982, a high school student from Los Angeles, California unscrambled the Rubik's Cube in 22.95 seconds.
60