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  4. 19
  5. Ruth Barcan Marcus

Deaths on February 19

Ruth Barcan Marcus
2012Feb, 19

Ruth Barcan Marcus

Ruth Barcan Marcus, American philosopher and logician (b. 1921)
Ruth Barcan Marcus (; born Ruth Charlotte Barcan; 2 August 1921 – 19 February 2012) was an American academic philosopher and logician best known for her work in modal and philosophical logic. She developed the first formal systems of quantified modal logic and in so doing introduced the schema or principle known as the Barcan formula. (She would also introduce the now standard "box" operator for necessity in the process.) Marcus, who originally published as Ruth C. Barcan, was, as Don Garrett notes "one of the twentieth century's most important and influential philosopher-logicians". Timothy Williamson, in a 2008 celebration of Marcus' long career, states that many of her "main ideas are not just original, and clever, and beautiful, and fascinating, and influential, and way ahead of their time, but actually – I believe – true".

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Events on 2012

  • 13Jan

    Costa Concordia disaster

    The passenger cruise ship Costa Concordia sinks off the coast of Italy due to the captain's negligence and irresponsibility. There are 32 confirmed deaths.
  • 2Jun

    2011 Egyptian revolution

    Former Egyptian President Hosni Mubarak is sentenced to life imprisonment for his role in the killing of demonstrators during the 2011 Egyptian revolution.
  • 19Jun

    Julian Assange

    WikiLeaks founder Julian Assange requested asylum in London's Ecuadorian Embassy for fear of extradition to the US after publication of previously classified documents including footage of civilian killings by the US army.
  • 11Sep

    2012 Benghazi attack

    The U.S. embassy in Benghazi, Libya is attacked, resulting in four deaths.
  • 23Oct

    Digital switchover

    After 38 years, the world's first teletext service (BBC's Ceefax) ceases broadcast due to Northern Ireland completing the digital switchover.

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