1840 events in history

Jan 13 The steamship Lexington burns and sinks four miles off the coast of Long Island with the loss of 139 lives
Jan 19 Captain Charles Wilkes circumnavigates Antarctica, claiming what became known as Wilkes Land for the United States
Jan 21 Jules Dumont d'Urville discovers Adélie Land, Antarctica
Feb 6 Signing of the Treaty of Waitangi, establishing New Zealand as a British colony
Feb 10 Queen Victoria of the United Kingdom marries Prince Albert of Saxe-Coburg-Gotha
Feb 11 Gaetano Donizetti's opera La fille du régiment receives its first performance in Paris, France
Apr 27 Foundation stone for new Palace of Westminster, London, is laid by wife of Sir Charles Barry
May 1 The Penny Black, the first official adhesive postage stamp, is issued in the United Kingdom
May 6 The Penny Black postage stamp becomes valid for use in the United Kingdom of Great Britain and Ireland
May 7 The Great Natchez Tornado strikes Natchez, Mississippi killing 317 people. It is the second deadliest tornado in United States history
May 20 York Minster is badly damaged by fire
May 22 The transportation of British convicts to the New South Wales colony is abolished
Jun 20 Samuel Morse receives the patent for the telegraph
Jul 23 The Province of Canada is created by the Act of Union
Sep 5 Premiere of Giuseppe Verdi's Un giorno di regno at La Scala of Milan
Oct 7 Willem II becomes King of the Netherlands
Oct 14 The Maronite leader Bashir II surrenders to the British Army and then is sent into exile on the islands of Malta