March 27

• March 27, 922
  Mansur Al-Hallaj, a Persian mystic, is beheaded at age 64 in Baghdad for pronouncing in the midst of a trance that he was the truth, i.e god
• March 27, 1350
  Alfonso XI of Castile dies of the black death while besieging Gibraltar
• March 27, 1668
  English King Charles II gives Bombay to East India Company
• March 27, 1713
  Spain losses Minorca, one of the Balearic Islands located in the Mediterranean Sea during War of the Spanish Succession
• March 27, 1790
  Shoelaces are invented in England
• March 27, 1802
  France, Netherlands, Spain and England signs Treaty of Amiens which ends the War of the Second Coalition and the French Revolutionary War
• March 27, 1899
  The first international radio transmission between England and France was achieved by the Italian inventor Guglielmo Marconi
• March 27, 1914
  First successful non-direct blood transfusion is performed by Albert Hustin in Brussels, Belgium
• March 27, 1933
  Polyethylene is discovered by Reginald Gibson and Eric William Fawcett by accident in Northwich, England
• March 27, 1964
  United Nations' troops arrive on Cyprus due to intercommunal violence between Greek Cypriots and Turkish Cypriot
• March 27, 1968
  Yuri Gagarin, the first human to journey into outer space, dies while on a routine training flight
• March 27, 1972
  Addis Ababa Agreement marks end of First Sudanese Civil War
• March 27, 1989
  Boris Yeltsin to the Congress of People's Deputies of the Soviet Union as the delegate from Moscow district in the first free elections for the Soviet parliament go against the Communist Party
• March 27, 1996
  Because of mad cow disease the European Commission stops the import of British beef
• March 27, 1998
  The US Food and Drug Administration approves Viagra, also known as Sildenafil, for use as a treatment for male sexual impotence, the first pill to be approved for this condition in the United States
• March 27, 2007
  Prime Minister of Latvia Aigars Kalvitis and Prime Minister of Russia Mikhail Fradkov finally signs a border treaty between Latvia and Russia