Philadelphia hosted the 1876 Centennial Exposition remembered during the United States Semiquincentennial.
The exposition marked the 100th anniversary of the Declaration of Independence and was held in Philadelphia, the city where the Second Continental Congress met and where the Declaration was adopted. It showcased industrial, agricultural, scientific, and cultural achievements from the United States and other nations.
Philadelphia has repeatedly been central to American anniversary history. The city hosted the 1876 Centennial Exposition, the 1926 Sesquicentennial Exposition, and major events connected with the 2026 Semiquincentennial. Independence Hall also remains one of the best-known places associated with the founding era.
The 1876 exposition should not be confused with the 1893 World's Columbian Exposition in Chicago or the 1904 Louisiana Purchase Exposition in St. Louis. Its defining purpose was the centennial of American independence, making Philadelphia the most directly connected host city.