Philadelphia hosted the 1876 Centennial Exposition, the United States’ first official world’s fair and a major celebration of the nation’s 100th anniversary.
Known formally as the International Exhibition of Arts, Manufactures and Products of the Soil and Mine, the exposition took place in Philadelphia’s Fairmount Park. Its location connected the event to the city where the Declaration of Independence had been adopted a century earlier.
The exposition opened on May 10, 1876, and ran until November 10. Exhibits presented industrial inventions, agricultural products, artworks, and manufactured goods from the United States and other countries. Thirty-seven countries participated.
Visitors encountered technologies and landmarks that became associated with the fair, including Alexander Graham Bell’s telephone and the massive Corliss steam engine. Philadelphia’s role in the 1876 centennial also makes it a natural historical counterpart to the city’s prominent place in America250 commemorations in 2026. The Centennial Exposition should not be confused with later world’s fairs held in cities such as Chicago or New York.