The famous jewelry store Tiffany & Co. was established on September 18, 1837 in New York City. The amount of sales that were made the first day were $4.98.

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.

The Pentagon cost $49,600,000 to build in 1941.

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