To celebrate the 100th anniversary of the signing of the Declaration of Independence, America held the Centennial International Exhibition in the city of Philadelphia. This multi-month long extravaganza later became the first official World’s Fair in the United States. Held on the fairgrounds along the Schuylkill River in the Fairmount neighborhood of the city of brotherly love, the international celebration, which went on for seven months straight and attracted nearly 10 million visitors, was also a kind of modern-day consumer electronics showcase. New innovations were placed on display for the first time for the public to see. These included the telephone, the typewriter, and even Heinz Ketchup and Hires Root Beer.