This Day in Geek History: April 22
The Supernova Crab nebula is bright enough to be seen with the naked eye for the last time.
The first installment of the popular Japanese comic strip, Sazae-san, one of the first examples of manga, is published in the Fukunichi Shimbun, the local newspaper of Hasegawa, Japan. The four panel strip centers around a fictional wife, Sazae-san, as she struggle with the daily tribulations of managing an average three-generation Japanese household.
A nuclear explosion is shown on live network television for the first time.
Twentieth Century Fox Film Corp. releases the science fiction film Invaders from Mars, directed by William Cameron Menzies and starring Jimmy Hunt, Helena Carter, Arthur Franz, Morris Ankrum, Leif Erickson, and Hillary Brooke, to U.S. theaters. In it, a boy discovers that space aliens are taking over the minds of Earthlings. IMDB listing
Running Time: 1 hr 18 mins
The United States Supreme Court rules in the case of Ginsberg v. New York that materials that are not obscene for adults can still be obscene for children and, in the case of Interstate Circuit, Inc. v. Dallas, the court rules that film classification schemes are constitutional as long as they are clearly defined. Read more at Findlaw: Ginsberg v. New York / Interstate Circuit, Inc. v. Dallas
The first successful human eye transplant is performed in Houston for a patient named John Madden.
The first nationwide Earth Day is celebrated in the United States to promote environmental awareness. The event, which was founded by the efforts of Senator Gaylord Nelson of Wisconsin, is celebrated by millions of Americans with public events such as marches and rallies for the purpose of reflecting on the importance of conservation. Many historians will later regard this as the beginning of the modern environmental movement. Later in the year, President Nixon will create the Environmental Protection Agency (EPA) to address the issue of pollution.
The Quaker Oats Company announces that it has acquired the home video game assets of U.S. Games Corporation.
Gorizont 9, one of thirty-five geosynchronous Russian satellites, is launched.