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Invention Trivia (Cont.)

What did the first coin-operated vending machines dispense?
Introduced in London in the early 1880s, the earliest vending machines dispensed postcards. Richard Carlisle, an English publisher and bookshop owner, invented a vending machine around the same time that sold books.

Where is the National Inventor's Hall of Fame?
Created to recognize and honor successful inventors, the Inventors Hall of Fame was established in 1973 by the National Council of Patent Law Associations, now the National Council of Intellectual Property Law Associations, and the Patent and Trademark Office of the United States Department of Commerce. It is located in Akron, Ohio.

How did graham crackers get their name?
Graham crackers, invented in 1829, were named after their inventor, Sylvester Graham, a Presbyterian minister. He was an avid vegetarian who promoted the use of sifted and coarsely ground wheat flour for its high fiber content.

John Spilsbury used his map-making skills to invent what leisure-time activity?
John Spilsbury, an English engraver and mapmaker, invented the jigsaw puzzle in 1767. He attached a map of the world to a piece of wood, then cut out each country using a fine-bladed marquetry knife. Following its invention, educators used Spilsbury's puzzles to teach geography lessons.

What commonly used product was originally made out of fish?
The first patent for an adhesive was issued around 1750 for a glue made out of fish. Shortly after, patents were issued for adhesives made from natural rubber, animal bones, starch, milk proteins and casein.

What type of cheese can be stored for up to a few years?
"Easy Cheese," or cheese in a can, was invented by the Nabisco Company and is manufactured in Wrightstown, Wisconsin. It is real cheese that may be squirted out of the can, and it requires no refrigeration.

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