January 2 » American statesman and diplomat John Hay announces the Open Door Policy to promote trade with China.
February 27 » Fußball-Club Bayern München is founded.
May 24 » Second Boer War: The United Kingdom annexes the Orange Free State.
May 26 » Thousand Days' War: The Colombian Conservative Party turns the tide of war in their favor with victory against the Colombian Liberal Party in the Battle of Palonegro.
July 19 » The first line of the Paris Métro opens for operation.
October 19 » Max Planck discovers Planck's law of black-body radiation.
Day of marriage August 15, 1928
The temperature on August 15, 1928 was between 12.2 °C and 21.1 °C and averaged 16.1 °C. There was 0.2 mm of rain. There was 6.4 hours of sunshine (43%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
April 14 » The Bremen, a German Junkers W 33 type aircraft, reaches Greenly Island, Canada - the first successful transatlantic aeroplane flight from east to west.
June 4 » The President of the Republic of China, Zhang Zuolin, is assassinated by Japanese agents.
August 27 » The Kellogg–Briand Pact outlawing war is signed by fifteen nations. Ultimately sixty-one nations will sign it.
October 1 » The Soviet Union introduces its first five-year plan.
November 18 » Release of the animated short Steamboat Willie, the first fully synchronized sound cartoon, directed by Walt Disney and Ub Iwerks, featuring the third appearances of cartoon characters Mickey Mouse and Minnie Mouse. This is considered by the Disney corporation to be Mickey's birthday.
December 13 » George Gershwin's An American in Paris is first performed.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I166115.php : accessed January 17, 2026), "Arie van der Voorde (1900-1968)".
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