Where was the United States Centennial Exposition held for the 1876 anniversary?

The United States Centennial Exposition was held in Philadelphia for the 1876 anniversary.

Officially called the International Exhibition of Arts, Manufactures, and Products of the Soil and Mine, the fair ran from May 10 to November 10, 1876. It took place in Fairmount Park along the Schuylkill River and celebrated the centennial of the Declaration of Independence.

The exposition was the first official world's fair held in the United States. Nearly 10 million visitors attended, and 37 countries participated. Its exhibits presented American industry, agriculture, science, and manufacturing to a large international audience.

The fair also displayed important new technologies. Alexander Graham Bell demonstrated an early telephone, while machinery exhibits included sewing machines, agricultural equipment, and other industrial products. The 1876 exposition established Philadelphia as a recurring center for national anniversary observances, a role the city again held during the 1926 Sesquicentennial and the 1976 Bicentennial.