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, inve