History Defined on Twitter: "During the 1986 Cleveland Balloonfest over 1.5 million balloons were released simultaneously. https://t.co/gSDuAUZ1ma" / Twitter
The Disastrous Aftermath of Cleveland's Release of 1.5 Million Balloons | by Alice Vuong | Better Marketing
Cleveland Balloonfest '86: A Short Film By Nathan Truesdell - The Atlantic