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Births on June 27

Augustus De Morgan
1806Jun, 27

Augustus De Morgan

Augustus De Morgan, English mathematician and logician (d. 1871)
Augustus De Morgan (27 June 1806 – 18 March 1871) was a British mathematician and logician. He formulated De Morgan's laws and introduced the term mathematical induction, making its idea rigorous.

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Events on 1806

  • 23Mar

    Corps of Discovery

    After traveling through the Louisiana Purchase and reaching the Pacific Ocean, explorers Lewis and Clark and their "Corps of Discovery" begin their arduous journey home.
  • 27Jun

    British invasions of the River Plate

    British forces take Buenos Aires during the first British invasions of the River Plate.
  • 12Aug

    British invasions of the River Plate

    Santiago de Liniers, 1st Count of Buenos Aires re-takes the city of Buenos Aires, Argentina after the first British invasion.
  • 8Oct

    Congreve rocket

    Napoleonic Wars: Forces of the British Empire lay siege to the port of Boulogne in France by using Congreve rockets, invented by Sir William Congreve.
  • 9Oct

    War of the Fourth Coalition

    Prussia begins the War of the Fourth Coalition against France.