Flash Appreciation Day was an event held by the people of Central City in honor of their hometown superhero, the Flash. The major events of the day included a presentation of a key to the city to the Scarlet Speedster, and the dedication of the new Flash Museum. The Flash's Justice League cohorts Batman and Orion were on hand for the occasion, a fact that proved fortunate when members of the Flash's Rogues' Gallery decided to add their own events to the day—a series of attempts on Flash's life.