The Trans-Mississippi and International Expositions of 1898–1899The Trans Mississippi Exposition of 1898 celebrated Omahas key economic role as a center of industry west of the Mississippi River and its arrival as a progressive metropolis after the Panic of 1893. The exposition also promoted the rise of the United States as an imperial power, at the time on the brink of the Spanish American War, and the nations place in bringing civilization to Indigenous populations both overseas and at the conclusion of the