The Centennial International Exhibition, officially the International Exhibition of Arts, Manufactures, and Products of the Soil and Mine, was held in Philadelphia, Pennsylvania, from May 10 to November 10, 1876. It was the first official world's fair to be held in the United States and coincided with the centennial anniversary of the Declaration of Independence's adoption in Philadelphia on July 4, 1776.
It was held in Fairmount Park along the Schuylkill River on fairgrounds designed by Herman J. Schwarzmann. Nearly 10 million visitors attended the exposition, and 37 countries participated in it.
The Great Central Fair on Logan Square in Philadelphia, in 1864, also known as the Great Sanitary Fair, was one of the many United States Sanitary Commission's Sanitary Fairs held during the American Civil War.
The fairs provided a creative and communal means for ordinary citizens to promote the welfare of Union Army soldiers and dedicate themselves to the survival of the nation, and the Great Central Fair bolstered Philadelphia's role as a vital center in the Union war effort. It anticipated the combination of public, private, and commercial investments that were necessary to mount the Centennial Exposition. Both had a similar neo-Gothic appearance, including the waving flags, a huge central hall, the "curiosities" and relics, handmade and industrial exhibits, and also a visit from the U.S. president and his family.
The idea of the Centennial Exposition is credited to John L. Campbell, a professor of mathematics, natural philosophy, and astronomy at Wabash College in Crawfordsville, Indiana. In December 1866, Campbell suggested to Philadelphia Mayor Morton McMichael that the United States Centennial be celebrated with an exposition in Philadelphia. Naysayers argued that the project would not be able to find funding, other nations might not attend, and domestic exhibits might compare poorly to foreign ones.
The Franklin Institute became an early supporter of the exposition and asked the Philadelphia City Council for use of Fairmount Park. With reference to the numerous events of national importance that were held in the past and related to the city of Philadelphia, the City Council resolved in January 1870 to hold the Centennial Exposition in the city in 1876.
The Philadelphia City Council and the Pennsylvania General Assembly created a committee to study the project and seek support of the U.S. Congress. Congressman William D. Kelley spoke for the city and state, and Daniel Johnson Morrell introduced a bill to create a United States Centennial Commission. The bill, which passed on March 3, 1871, provided that the U.S. government would not be liable for any expenses.
The United States Centennial Commission organized on March 3, 1872, with Joseph R. Hawley of Connecticut as president. The Centennial Commission's commissioners included one representative from each state and territory in the United States. On June 1, 1872, Congress created a Centennial Board of Finance to help raise money. The board's president was John Welsh, brother of philanthropist William Welsh, who had raised funds for the Great Sanitary Fair in 1864. The board was authorized to sell up to $10 million in stock via $10 shares. The board sold $1,784,320 ($47,953,600 in 2025) worth of shares by February 22, 1873. Philadelphia contributed $1.5 million and Pennsylvania gave $1 million. On February 11, 1876, Congress appropriated $1.5 million in a loan.
The board initially thought it was a subsidy. (And in fact, after the exposition ended, the federal government sued to have the money returned, and the United States Supreme Court ultimately forced repayment.) John Welsh therefore enlisted help from the women of Philadelphia who had helped him in the Great Sanitary Fair. A Women's Centennial Executive Committee was formed with Elizabeth Duane Gillespie, a great-granddaughter of Benjamin Franklin, as president. In its first few months, the group raised $40,000. When the group learned the planning commission was not doing much to display the work of women, it raised an additional $30,000 for a women's exhibition building.
In 1873, the Centennial Commission named Alfred T. Goshorn as the director general of the Exposition. The Fairmount Park Commission set aside 450 acres (1.8 km2) of West Fairmount Park for the exposition, which was dedicated on July 4, 1873, by Secretary of the Navy George M. Robeson. The Commission decided to classify the exhibits into seven departments: agriculture, art, education and science, horticulture, machinery, manufactures, and mining and metallurgy. Newspaper publisher John W. Forney agreed to head and pay for a Philadelphia commission sent to Europe to invite nations to exhibit at the exposition. Despite fears of a European boycott and high American tariffs making foreign goods not worthwhile, no European country declined the invitation.
To accommodate out-of-town visitors, temporary hotels were constructed near the exposition's grounds. A Centennial Lodging-House Agency made a list of rooms in hotels, boarding houses, and private homes and then sold tickets for the available rooms in cities promoting the Centennial or on trains heading for Philadelphia. Philadelphia streetcars increased service, and the Pennsylvania Railroad ran special trains from Philadelphia's Market Street, New York City, Baltimore, and Pittsburgh. The Philadelphia and Reading Railroad ran special trains from the Center City part of Philadelphia. A small hospital was built on the exposition's grounds by the Centennial's Medical Bureau, but despite a heat wave during the summer, no mass health crises occurred.
Philadelphia passed an ordinance that authorized Mayor William S. Stokley to appoint 500 men as Centennial Guards for the exposition. Among soldiers and local men hired by the city was Frank Geyer, best known for investigating one of America's first serial killers, H. H. Holmes. Centennial Guards policed exhibits, kept the peace, reunited lost children, and received, recorded, and when possible, returned lost items, the most unusual of which were front hair pieces and false teeth.
Guards were required to live onsite and were housed at six police stations strategically located throughout the Exposition. A magistrate's office and courtroom were located at the only two-story police station located on the grounds and was used to conduct prisoner hearings. Officers slept in cramped quarters, which fostered health issues. Eight guards died while working the Exposition, six from typhoid fever, one from smallpox, and one from organic disease of the heart.
The Centennial National Bank was chartered on January 19, 1876, to be the "financial agent of the board at the Centennial Exhibition, receiving and accounting for daily receipts, changing foreign moneys into current funds, etc.," according to an article three days later in The Philadelphia Inquirer. Its main branch, designed by Frank Furness, was opened that April on the southeast corner of Market Street and 32nd Street. A branch office operated during the exposition on the fairgrounds. The Centennial Commission ran out of funds for printing and other expenses.
Philadelphia city officials appropriated $50,000 to make up for the shortfall.
Herman J. Schwarzmann, an engineer for the Fairmount Park Commission, was appointed the main designer of the exposition. In 1869, Schwarzmann began working for the Fairmount Park Commission, which administered the site of the 1876 Centennial Exposition. It is one of the great urban parks of the United States; its importance in landscape history was surpassed only by Central Park. Schwarzmann was the chief architect for the Centennial Exposition, designing Memorial Hall, Horticultural Hall, other small buildings, and the landscaping around them. His work for the Centennial Exposition was informed by the Vienna International Exposition in 1873, which Schwarzmann visited to study the buildings and the grounds layout. The Vienna International Exposition in 1873 was marred by disastrous logistic planning and was taken as a cautionary example.