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Births on March 4

Oscar Chisini
1889Mar, 4

Oscar Chisini

Oscar Chisini, Italian mathematician and statistician (d. 1967)
Oscar Chisini (March 14, 1889 – April 10, 1967) was an Italian mathematician. He introduced the Chisini mean in 1929.

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Events on 1889

  • 8Jan

    Punched card

    Herman Hollerith is issued US patent #395,791 for the 'Art of Applying Statistics' — his punched card calculator.
  • 30Jan

    Mayerling Incident

    Archduke Crown Prince Rudolf of Austria, heir to the Austro-Hungarian crown, is found dead with his mistress Baroness Mary Vetsera in the Mayerling.
  • 2May

    Treaty of Wuchale

    Menelik II, Emperor of Ethiopia, signs the Treaty of Wuchale, giving Italy control over Eritrea.
  • 6May

    Exposition Universelle (1889)

    The Eiffel Tower is officially opened to the public at the Universal Exposition in Paris.
  • 15Nov

    Decline and fall of Pedro II of Brazil

    Brazil is declared a republic by Marshal Deodoro da Fonseca as Emperor Pedro II is deposed in a military coup.