World’s Columbian Exposition celebrated “American Cities Day” on Saturday, October 28, 1893, two days before the close of the Fair. Chicago’s Mayor, Carter Harrison, hosted what was thought to be the largest congregation of U.S. mayors ever assembled. Greeting the guests as they arrived on the fairgrounds on the bitterly cold day was the blast of a cannon and musical fanfares from a group of sixteen trumpeters stationed around Music Hall. Mayors represented the great cities of Philadelphia, Milwaukee, [...]