History
Century
History of Watchmaking
Birth, in Fleurier, of Charles-Edouard Guillaume (1861-1938), a physicist and inventor of the alloys invar and elinvar (1919), alloys which compensate for the effect of temperature changes on clock and watch accuracy. He was also director of the Bureau International des Poids et Mesures (International Weights and Measures Bureau) in Sèvres (France), and was awarded the Nobel Prize for Physics in 1920.
World history
American Civil War.
Victor Emmanuel II became King of Italy.
French intervention in Lebanon.
Bahrain became a British protectorate.
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