This Day in Geek History: May 10
1852
The theory of valence was announced by English chemist Sir Edward Frankland. The theory lays out the fundamental principal that any atom can combine with a certain, limited number of other atoms.
1860
The discovery of the element Caesium is announced by German chemists, Robert Bunsen and Gustav Robert Kirchoff to the Berlin Academy of Scientists.
1894
“Wireless” is born when Guglielmo Marconi sends a radio wave three-quarters of a mile. Three years later the Marconi Company will successfully communicate “ship to shore” over a distance of twelve miles.
1925
John Thomas Scopes is given a preliminary hearing before three judges. He had been arrested and charged under a new Tennessee’s state law, the Butler Act, which prohibited the teaching of Charles Darwin’s Theory of Evolution in public schools. Scopes had agreed to participate in a challenge to that law, with the support of the local town leaders in Dayton, Tennessee and the American Civil Liberties Union. A few weeks later, at what became known as the Scope’s Monkey Trial, he will be found guilty and fined US$100. Upon appeal, the fine will be ruled excessive and over-ruled, but the state law itself will not be found unconstitutional. Thereafter, the law will not be enforced, but it will not repealed until 1967.
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