15th April anniversaries

• Birth
  • 1452
  • Italy
  • Birth of Leonardo da Vinci more
  • 1469
  • India
  • "Birth of Guru Nanak Dev, first of the ten Sikh Gurus" more
  • 1800
  • Great Britain
  • "Birth of James Clark Ross, Antarctic explorer" more
  • 1809
  • Germany
  • "Birth of Hermann Grassmann, German mathematician and linguist who developed linear algebra and several new vector methods" more
  • 1843
  • United States
  • "Birth of Henry James, American writer" more
  • 1858
  • France
  • "Birth of Émile Durkheim, French sociologist ." more
  • 1933
  • United States
  • "Birth of Elizabeth Montgomery, American actress (‘Bewitched’) ." more
• event
  • 1649
  • Great Britain
  • Cromwell Declares England a Commonwealth
  • 1755
  • Great Britain
  • Dr Samuel Johnson's A Dictionary of the English Language is first published. more
  • 1793
  • Great Britain
  • £5 notes first issued by the Bank of England
  • 1912
  • Great Britain
  • "The 'unsinkable' Titanic sinks on maiden voyage – loss of 1,513 lives " more
  • 1989
  • Great Britain
  • "Hillsborough disaster: 96 people were killed in a crush of football fans at the Hillsborough Stadium, Sheffield, UK" more
• Death
  • 1659
  • Germany
  • "Death of Simon Dach, Prussian poet and hymn writer" more
  • 1983
  • Netherlands
  • "Death of Corrie ten Boom, Dutch writer and Holocaust survivor ." more
  • 1984
  • Great Britain
  • "Death of Tommy Cooper, Welsh comedy magician" more
  • 1988
  • Great Britain
  • "Death of Kenneth Williams, British actor and comedian ." more
  • 1998
  • Great Britain
  • "Death of Fred Davis, British snooker player ." more
  • 1998
  • Cambodia
  • "Death of Pol Pot, Cambodian leader of the Khmer Rouge ." more
  • 1999
  • Great Britain
  • "Death of Harvey Postlethwaite, British Formula One racing car engineer" more