September 27, 1986 –
The most balloons released simultaneously was 1,429,643 on this date, in Cleveland, Ohio. The event was called “Balloonfest ’86” and was organized by the United Way of Greater Cleveland.
The goal was to break the Guinness World Record for the most balloons released simultaneously, which was previously held by Disneyland. Soon after the balloons were released, the weather unexpectedly changed, and strong winds that were not expected pushed the balloons back down to earth. Instead of floating away, the balloons fell, covering the city and nearby Lake Erie, and may or may not have led to the death of two boaters. The people from The Guinness Book did not recognize the accomplishment.
The Haus of Dcaligari 