<Ul> <Li> 1992, when the event expanded to four days . Attendance increased to 800,000, which was the largest attendance for any event in Cincinnati history to date . </Li> <Li> 1995, when the schedule was moved up a year to prevent a near - conflict with the 1996 Summer Olympics in Atlanta, Georgia . The event expanded to five days and 19 riverboats . The Kentucky cities added a Civil War re-enactment to the festivities, and attendance increased again to 850,000, a new record . </Li> <Li> 1999, though attendance was down, Tall Stacks' 99 drew 660,000 and was named the nation's top tourism event by the American Bus Association . Nineteen riverboats again traveled to the festival . </Li> </Ul> <Li> 1992, when the event expanded to four days . Attendance increased to 800,000, which was the largest attendance for any event in Cincinnati history to date . </Li> <Li> 1995, when the schedule was moved up a year to prevent a near - conflict with the 1996 Summer Olympics in Atlanta, Georgia . The event expanded to five days and 19 riverboats . The Kentucky cities added a Civil War re-enactment to the festivities, and attendance increased again to 850,000, a new record . </Li> <Li> 1999, though attendance was down, Tall Stacks' 99 drew 660,000 and was named the nation's top tourism event by the American Bus Association . Nineteen riverboats again traveled to the festival . </Li>

When is tall stacks coming back to cincinnati