Louis Pasteur performed his first pasteurization tests in 1864. The Columbine school massacre occurred in 1999. Vitaphone audio process was announced in 1926. Marie and Pierre Curie isolated radium chloride in 1902. The Crimes in the Rue Morgue was published in 1841. The Ku Klux Act was passed in 1871. President McKinley signed a joint resolution calling for Spain to leave Cuba in 1898. RCA demonstrated its new electron microscope in 1940. Adolf Hitler was born in 1889. Danica Patrick became the first woman to win an Indy race in 2008.
Louis Pasteur performed his first pasteurization tests. (1864) Pasteur and Claude Bernard carried out their first experiments with pasteurization on this day, intending to use it to preserve beer and wine. The process, which kills a variety of microbes and bacteria in liquids, is now being used to sterilize nearly all milk.
The Columbine school massacre occurred. (1999) United States shocked by high school homicides in which two boys killed 13 and injured more than 20 before killing themselves. It was the fourth deadliest school shooting in U.S. history and led to much discussion about gun control and violent youth.
The Vitaphone audio process has been announced. (1926) Vitaphone was a partnership between Warner Brothers and Western Electric used in over 1,000 short films. It is considered the most successful sound-on-disc process, a method in which a film was shot with sound recorded on discs, which were then played simultaneously with the film in theaters.
Marie and Pierre Curie isolated radium chloride. (1902) It was the first type of radium that the Curies isolated, and it is still used to extract radium from pitchblende and for the production of radon gas, a cancer treatment.
The Crimes in the Rue Morgue is published. (1841) Often considered the first mystery story, Edgar Allen Poe’s The Murders in the Rue Morgue focused on the analytical powers of Auguste Dupin, a character who influenced the creation of both Sherlock Holmes and Hercule Poirot.
The Ku Klux Act has been passed. (1871) The Civil Rights Act of 1871, also known as the Ku Klux Act, was enacted to protect African Americans from abuses such as those perpetrated by the Ku Klux Klan. While largely ineffective at first, the act has since been used in several major court cases.
President McKinley signed a joint resolution calling for Spain to leave Cuba. (1898) Tensions had been rising between the United States and Spain since the USS Maine exploded about a month earlier. Despite McKinley’s efforts to maintain neutrality, public opinion was heavily against Spain, which viewed the resolution as a declaration of war.
RCA demonstrated its new electron microscope. (1940) The company was among the first to develop the electron microscope, which remains widely used today in many forms of scientific research.
Adolf Hitler is born. (1889) The future Führer was born in Austria on this day as the fourth of six children. Often labeled one of the most wicked men in history, Hitler actually contemplated becoming a priest in his early life.
Danica Patrick became the first woman to win an Indy race. (2008) Patrick’s win was a milestone in a largely male-dominated sport, and she is credited with being the first woman to win in a top-level American contest.
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