In Gulliver's Travels Jonathan Swift described the two moons of Mars, Phobos and Deimos, giving their exact size and speeds of rotation. He did this more than 100 years before either moon was discovered.

In the last 3,500 years, there have been approximately 230 years of peace throughout the civilized world.

Pigeons have been trained by the U.S. Coast Guard to spot people lost at sea.

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