About 10 million visitors attended, equivalent to about 20% of the population of the United States at the time (though many were repeat visitors).
Exhibition Conceived
in Crawfordsville, Indiana (1866)
John L. Campbell, a professor of mathematics, natural philosophy and astronomy at Wabash College, Crawfordsville, Indiana
first suggested to Philadelphia's mayor that the United States Centennial be celebrated with an exposition in Philadelphia.
Joseph R. Hawley named
President of Exhibition
Joseph R. Hawley Named President for
1876 Centennial Exhibition