This Day in Geek History: June 25
1638
A lunar eclipse becomes the first astronomical event recorded in the United States.
1783
Antonie Lavoisier announces to the French Academy of Sciences that water is the product of the combination of hydrogen and oxygen. However, this discovery was made earlier by the English chemist Henry Cavendish.
1876
The first public demonstration of Bell’s speaking telephone is given at the Centennial Exhibition, in Philadelphia, Pennsylvania.
1925
Warner Bros. forms the Vitaphone Company in partnership with Western Electric to develop and exploit sound-on-disc technology for cinemas. Development work takes place at the Vitagraph Studio in Brooklyn, New York, under an eleven person team from Bell Telephone Labs under British-born Stanley S A Watkins.
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