In 1693, the postage rate of a letter was determined by how much light went through the letter. The less the light went through the letter the more expensive the rate would be. This technique was referred to as candling.

In 1948 and 1950 the oldest ears of popping corn were discovered. They were located in the Bat Cave of west central New Mexico. They ranged in size from smaller than a penny to approximately two inches, and were about 4,000 years old.

If there are two full moons in a month, the second one is called a blue moon.

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