The native Americans planted three sisters (corn, beans, and squash) together so that they would benefit each other. The corn provides a structure for the beans to climb. The beans provide the nitrogen to the soil, and the squash spreads along the ground preventing weeds.
30
A singing birthday card has more computing power than the allied forces in 1945.
30
The first coast-to-coast telephone line was established in 1914.
33
Mahatma Gandhi used to travel with his goat so that he could have fresh milk.
11
Modern humans first appeared about 200,000 years ago, but record keeping didn't begin until about 6,000 years ago. That means about 97% of human history is lost.
21
Ancient Romans at one time used human urine as an ingredient in their toothpaste.
37
Napoleon constructed his battle plans in a sandbox.
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