Jefferson Davis becomes the president of the Confederacy, Pluto is discovered, a cow flies, the first Church of Scientology is formed, the Chicago Seven are found not guilty, and Dale Earnhardt dies at the Daytona 500, all on this day.
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National Nuclear Security Administration/Nevada Site Office
1955: The Operation Teapot nuclear test shot "Wasp" is successfully detonated at the Nevada Test Site with a yield of 1.2 kilotons. Wasp is the first of 14 shots of the Teapot series, which was designed to establish military tactics for ground forces on a nuclear battlefield and to improve the weapons used to deliver a nuclear bomb core.