 The riots ended the regime of political bosses John Roll McLean and Thomas C. Campbell in Cincinnati.An early rejuvenation of downtown began in the 1920s and continued into the next decade with the construction of Union Terminal, the post office, and the large Cincinnati and Suburban Telephone Company Building.Cincinnati weathered the Great Depression better than most American cities of its size, largely due to a resurgence in river trade, which was less expensive than transporting goods by rail.