Originally conceived to commemorate the 400th anniversary of Columbus's discovery of America, the World's Columbian Exposition of 1893 was one of the largest (633 acres) and most influential aggregations of human talent, energy, and industry ever assembled. More than 27 million visitors entered the grounds (now Jackson Park) to marvel at the exhibits and displays housed in some 200 buildings, including those of 79 foreign governments and 38 states. Although the Fair had its share of "firsts" (original Ferris wheel, first midway, Edison's kinetoscope, etc.), its chief marvel was its...