Important Events of March – 11


Important Events of March – 11

Memorial Day of Alexander Fleming

Sir Alexander Fleming (6 August 1881 – 11 March 1955) was a Scottish physician, microbiologist, and pharmacologist.

His Invention:

  • His best-known discoveries are the enzymelysozyme in 1923
  • The world’s first antibiotic substance benzyl penicillin (Penicillin G) from the mould Penicillium notatum in 1928, for which he shared the Nobel Prize in Physiology or Medicine in 1945 with Howard Florey and Ernst Boris Chain.
  • He wrote many articles on bacteriology, immunology, and chemotherapy.

Early Life:

  • Born on 6 August 1881 at Lochfield farm near Darvel, in Ayrshire, Scotland, Alexander was the third of the four children of farmer Hugh Fleming (1816–1888) from his second marriage to Grace Stirling Morton (1848–1928), the daughter of a neighbouring farmer.
  • Hugh Fleming had four surviving children from his very first marriage. He was 59 at the time of his second marriage, and died when Alexander was seven.

Personal life:

  • On 24 December 1915, Fleming married a trained nurse, Sarah Marion McElroy of Killala, County Mayo, Ireland. Their only child, Robert Fleming (1924-2015), became a general medical practitioner.
  • After his first wife’s death in 1949, Fleming married Dr. Amalia Koutsouri-Vourekas, a Greek colleague at St. Mary’s, on 9 April 1953; she died in 1986.


  1. FRS (1943)
  2. Nobel Prize (1945)
  3. FRSE
  4. FRCS(Eng)
  5. Knight Bachelor (1944)


  • On 11 March 1955, Fleming died at his home in London of a heart attack. He was buried in St Paul’s Cathedral.

March 11 is the 70th day of the year (71st in leap years) in the Gregorian calendar

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