The Patriot, a newspaper based in Harrisburg, Pennsylvania, published a photograph of the state capitol building collapsing. A caption below the picture read, “Custodian A.F. Day said the blast occurred during a joint House-Senate session addressed by Hubert Humphrey and Gov. Milton Shapp… Day attributed the explosion to an abnormal expansion of hot air which usually is absorbed by acoustic seats in the chamber.“ The hoax elicited negative comments from many readers who accused the paper of “confusing fun with irresponsibility.“ Two days later the paper apologized for the hoax and promised that it would never publish another. The hoax recalled a similar April Fool’s Day joke published by the
Madison Capital-Times in
1933.
The national news in the Netherlands reported that the Tower of Pisa had fallen over. The announcement caused widepread shock and mourning.
The Light of San Antonio, Texas published a story about a huge army missile that had accidentally escaped from Kelly Air Force Base during testing, "screamed over San Antonio," and crashed into a water tank near Trinity University. An accompanying picture showed the missile embedded in the ground as water from the tank poured over it. An Airforce Colonel was quoted as saying, "We're spending a great deal of money and much of this nation's international diplomacy is based on the armed strength this and other units like it achieve. So I hope you'll understand why I have no more time for this damned April Fool gag."

The Madison
Capital-Times ran a picture on its front page showing the dome of the Wisconsin State Capitol collapsing. A headline announced, "Dome Topples Off Statehouse," while the subhead read, "Officials Say Legislature Generated Too Much Hot Air."
The accompanying article reported that "Wisconsin's beautiful $8 million capitol was in ruins today, following a series of mysterious explosions which blasted the majestic dome from its base." The explosions were said to have begun at 7:30 AM, followed by smaller blasts that "sent showers of granite chips down upon the heads of pedestrians." Three large blasts finally finished off the dome, though luckily no one was seriously hurt. The article added, "Authorities were considering the possibility that large quantities of gas, generated through many weeks of verbose debate in the Senate and Assembly chambers, had in some way been ignited, causing the first blast." Hot air that had found its way into other rooms caused the following blasts.
Despite the fact that the story concluded with the words "April Fool," many readers were upset. One reader wrote to the editor, "I was filled with indignation over your April Fool joke on the front page of the Capital-Times of April 1. There is such a thing as carrying a joke too far and this one was not only tactless and void of humor, but also a hideous jest."
The photo and story were the work of photographer-reporter Cedric Parker. In 1985
The Science Digest named this one of the world's best hoaxes.