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."

The reason why locusts swarm are because when they are in groups, a "hot-spot" behind their hind legs is stimulated, which in turn causes their destructive nature. A large swarm of locusts can eat eighty thousand tons of corn in a day.

The story of Rudolph the Red-Nosed Reindeer was written in 1939 for a store promotion by an advertising employee of the department store Montgomery Ward.

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