1209581 The Women\'s Pavilion, Centennial International Exhibition, Philadelphia, 1876 (albumen print) by American Photographer, (19th century); 21x26 cm; Free Library of Philadelphia; (add.info.: The Centennial International Exhibition of 1876, the first official World\'s Fair in the United States, was held in Philadelphia, Pennsylvania, from May 10 to November 10, 1876, to celebrate the 100th anniversary of the signing of the Declaration of Independence in Philadelphia. It was officially the International Exhibition of Arts, Manufactures and Products of the Soil and Mine. It was held in Fairmount Park, along the Schuylkill River.); 穢 Free Library of Philadelphia ; American, out of copyright.