In 1923, the first neon sign was introduced in the U.S. Two neon signs were sold to a Packard car dealership for $24,000 which read, "Packard."

Coupons were introduced in 1894 when Asa Candler bought the Coca-Cola formula for $2,300 and gave people coupons that he had written out to receive a free glass of coke.

The porpoise is second to man as the most intelligent animal on the planet.

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