Southern Exposition

The Southern Exposition was a five-year series of world's fairs held in the city of Louisville, Kentucky, from 1883 to 1887 in what is now Louisville's Old Louisville neighborhood. The exposition, held for 100 days each year on immediately south of Central Park, which is now the St. James-Belgravia Historic District, was essentially an industrial and mercantile show. At the time, the exposition was larger than any previous American exhibition with the exception of the Centennial Exposition held in Philadelphia in 1876. U.S. President Chester A. Arthur opened the first annual exposition on August 1, 1883.
Highlights.
One highlight of the show was the largest to-date installation of incandescent light bulbs, having been recently invented by Thomas Edison (a resident of Louisville sixteen years before), to bring light to the exposition in the nighttime. The contract with the Louisville Board of Trade was for 5,000 incandescent lamps. 4,600 lamps for the exhibition hall and 400 for an art gallery, more than all the lamps installed in New York City at that time, were used.
George H. Yater writes in his book Two Hundred Years at the Fall of the Ohio: