Philadelphia hosted the 1876 Centennial Exposition marking 100 years of American independence.
The exposition took place in Fairmount Park from May to November 1876. It celebrated the centennial of the Declaration of Independence and showcased industrial machinery, manufacturing, agriculture, science, and cultural displays from the United States and other countries.
Philadelphia was a natural location because the Declaration had been adopted there in 1776 and the city had served as the revolutionary-era national capital. The exposition’s principal structures included Memorial Hall and the Main Exhibition Building, which became symbols of America’s industrial ambitions.
The event attracted millions of visitors and introduced the public to technologies and products such as the telephone, typewriter, and Corliss steam engine. Its success established a model for later anniversary celebrations, including Philadelphia’s 1926 Sesquicentennial Exposition and the nationwide Bicentennial observance in 1976.